Cando© Low-Powder (LP) tubing is made from high quality rubber with all the stretch characteristics of Cando© Band. Cando© tubing is used for rehabilitation conditioning and especially athletic training. All exercise tubing are lightweight take up minimal room and are highly portable. There are 8 progressive levels of resistance to accommodate the lightest to the strongest needs. Until recently there were 7 levels of tubing - but because of the fitness industry there are now 8. Need an even heavier tubing double the resistance by using two exercise tubes or simply a shorter piece. Cando© is licensed to use the Thera-Band© color sequence so resistance level is easily identified.