Five Resistance Levels
Silver
3-8 lbs*
1.3-3.6 kg*
Yellow
5-14 lbs*
2.2-6.3 kg*
Green
8-24 lbs*
3.6-10.8 kg*
Red
12-31 lbs*
5.4-14.1 kg*
Blue
14-34 lbs*
6.3-15.4 kg*
Black
20-45lbs*
6.3-15.4kg*
* resistance when stretched 1 – 3 times original length. As there are two tubes per attachment, the numbers would be double.
