The figure-8 design provides increased resistance when performing 1- and 2-arm exercises. A double-lock system ensures the high-quality tubing doesn't come apart, and the durable, soft PVC handles allow for a comfortable, secure grip. Kits available.Contains Latex. Features: Durable, soft PVC  handles won't deteriorate like foam. 13 1/2" L. Available in 5 different resistance levels. Provides increased resistance when performing 1- and 2-arm exercises. Double-lock system ensures tubing doesn't come apart. Is adaptable to all fitness levels from beginner to expert. Contains Latex. Resistance Levels Extra Light (Orange, 4 - 8 lbs.), Light (Lime Green, 5 - 13 lbs.), Medium (Red, 8 - 16 lbs.), Heavy (Light Blue, 11 - 22 lbs.), Extra Heavy (Purple 13 - 27 lbs.).