Model 5531 Set of (5) REP Bands features: For multi-functional exercise use. Bands are 50 yds. long x 4" wide. Supplied in dispensing box. Available in (5) color-coded resistance levels. Non-slip, non- latex elastomer. No powder, no odor. Use this clinically tested allergen-free safer alternative. LEVEL COLOR Extra-Light Peach Light Orange Medium Green Heavy Blue Extra-Heavy Plum