These Speed Bands are 42 in and great for stretching and speed training. They are in one circular piece. Ideal for exercise utilizing a continuous loop band without the need for tying. The loop band lays flat and is thick and comfortable to use. Easy to use for effective stretching of legs, thighs and hips. Kickers should stretch their hamstrings, quadriceps and hips thoroughly before every practice and during the off-season. Never sacrifice flexibility strength, you will not generate power if you cannot follow through on your kick.