Customer Reviews
The best resistance bands I've found 
2008-08-18
I use resistance bands as part of an overall routine including a Smith Machine, free weights, pushups, and aerobics. These are the first I've found that really can provide all the resistance one would want unless you are a true power-lifter type or professional athlete or are only interested in quads. Even then I think you could stack them with heavier bands, but then you are really creating a different product. With the 3 Red R4 bands it comes with, you can select one or all of them based on how many you step on. With all 3 its pretty tough. This is great for travel. While its not a substitute for weight training in my opinion, it can provide a good workout to most muscle sets and certainly serves a valuable purpose when access to weights is not an option and as a supplement to weights where there are certain exercises for which I like the bands better (e.g. behind-the-back rows). One drawback is that they are suprisingly heavy for exercise bands. The handles are heavy plastic, which makes them sturdy, but they are heavy, and if you are not controlling the resistance well, can hurt a bit if they press against your rists or body during a movement. On the whole, though, a great product.
Worth the money 
2008-07-02
i was a little skeptical buying this, but the workout I'm doing requires this for about 40% of the workout. so i bought it. the power cable is lined with 3 cables; each with 40 pounds of resistance(more or less depending on the set you buy) that you can easily attach/detach for the desired tension. i usually do 3 sets of 20 reps with each workout. you will definitely feel the burn. also you can buy extra cables if your workout becomes to easy, to increase the intensity of your workout. i highly recommend this product.
I'm not a gym rat, but these are a good supplement to your normal routine 
2008-05-18
I do have a gym membership, but I can't make it to the gym everyday because it's usually always full during peak hours. When I want to do something at home where I have more space, these cables are the perfect alternative. I can do almost work any muscle I could on the machines at the gym by just using these cables and have just about the same workout too. It provides excellent resistance. Plus there are a lot of free resources that show you what you can do with the cables if you run out of exercises to do with them.
These things are DURABLE! 
2008-02-18
I was somewhat skeptical buying this product. Maybe it would be too hard for me. Maybe it would be flimsy and break within a matter of days. However, I decided to "put myself out there" and buy it.
To my pleasure, I found that they were incredibly durable. It comes with 3 stretchy/flexible cables, and you have the option to connect one, two, or all three on the handles.
When I opened the package, I tried connecting all three that it came with. I'm not very muscular, and thus, it was too hard for me. I brought the setting down to two cables, but it was still too hard. I started getting worried that these cables were too tough for me. When I switched to only one cable, and found it was just the right setting. After using it for about 3-weeks (2-5 times per week), I finally changed two cables. I found it to be easier than when I first got the package. I had been using this along with the Lifeline Power Up Chin Ups. This obviously was a sign that I was getting more muscular. I recommend that you start each workout with the lowest cord in order to calibrate your body/muscles, and then work your way up, so that you don't put sudden strain on yourself.
Also, the wider apart you hold your legs, the harder it becomes to pull the cables up. This also adds another level of difficulty that you can factor in when you're ready. I haven't yet reached the 3-cord setting, so it also definitely includes lasting "replay" value.
It also includes a strap that you can wedge into your door, face your back towards the door, and then pull forward to increase chest workout.
Overall, I would definitely recommend buying these (along with the Power Up Chin Ups). I ordered these with Lifeline USA (the makers of the product) through Amazon, and they were nice enough to throw in some free stuff (they included a free jump rope, and push-up bars). If you are currently on a hunt for new workout equipment, search no further... this is a great product! :)
Excellent Fitness Tool 
2008-01-05
Having used weights for building muscle, I am not new to strength training. In the past I've done pretty much everything, from Smith machines in college, free weights after that, and , as I got older, a Soloflex machine...which, incidentally, made me comfortable with the idea of rubber resistance.
I wasn't quite sure what to expect from this product but fell for it very quickly. I can do more exercises with this in a short time, with infinitely more variation, than anything I've ever tried before. Best of all, I can take it with me anywhere I go, as evidenced during a recent extended trip to Europe where I didn't have the time or inclination - or reason, thanks to this product - to visit a gym.
The level of resistance is infinitely variable by changing one's stance, increasing or decreasing distance from the attachment point, adding more bands, etc. I can say without any exaggeration that this has built muscle on my male mid-40's 6 foot 2 inch frame, and even better, it has done so without any of the injuries or pain associated with free weights. As someone who prefers to exercise alone, there are practical limits to what I could do with free weights before getting into potentially dangerous situations, and while I like my Soloflex it doesn't provide much variation in terms of angles of resistance. The TNT power cables changed all that.
There really isn't any drawback. The only "caution" I would have is taking the time to learn how to brace yourself against the resistance as it can get mighty strong depending on how many bands and what resistance level you choose. But even this has an advantage as you're involving muscle groups that you would never involve in free weights or in a machine. For example, when doing the equivalent of a bench press, especially with heavy resistance, you have to lean forward and plant a solid foot behind you so you will move the band forward without your moving backward. This is excellent for improving balance, coordination, and involvement of more muscle groups.
I have had no problems with this product after six months of use and have bought several other items from the manufacturer, all of which I am very happy with. Be sure to follow the instructions for how to attach the door attachment. I haven't had any issues with it, but I can see how someone who didn't bother to read the (very simple) instructions could end up with a bunch of rubber in his or her face. Attach the strap on the hinge side of the door, not over the top or the latch side. That's it.
Too bad this isn't a franchise. if it were, I'd become a franchisee in a heartbeat, that's how impressed I am.
Best exercise cables out there 
2007-03-15
The NEW Lifeline TNT Cable is Better Than Iron for Size, Strength and Power; Generates 0 to 120 Pounds Instantly!