I have to replace this product purchased by the red fitness Tubes, always hold only half a year. Since this is to "studio quality" concerns and these should be "super for Boot Camp Workout" suitable, I thought, you can not do nothing wrong, Yes .... I thought. The resistance is great and you can make theoretically even harder ... I wonder, however, how long you can use it when you do that. Because without shortening have kept with me just 3 months at 2x per week of 20 minutes of exercise ... Bootcamp mind. I am sporty - okay, but when I think of studio-quality types that do not fit through the door and rip phone books with the little fingers. I have the Tubes also not used to tow a car, but only for Boot Camp. Because of this very, very short shelf life, I have complained at Amazon and kindly get a new pair (yes had to be Monday Stubes) but these have now today completed the split after just again just 3 months. What say this to us? Have bissl muscles, you want to be used for Boot Camp, or have even a studio ??? Then away :( recommended hands No way! I am very sorry!
