Features: Made of environmental-friendly polyester cotton and latex, durable and stretch further. 3 exercise resistance band strengths-light(24lbs), medium(32lbs), heavy(49lbs). Comfortable fabric provides high elasticity, non-slip design prevents any rolling or slipping. Combine the resistance bands freely to give different resistance levels for your workouts. Suitable for yoga, Pilates, working out, stretching and physical exercise. Specifications: Material: Polyester Cotton+Latex Model: Model A / Model B (optional) Item Size: 200 * 3cm Package Size: 20 * 20 * 3cm / 7.8 * 7.8 * 1.2in Package Weight: 380g / 13.4oz Package List: 3 * Resistance Bands 1 * Carry Bag 1 * Instruction Note: Item colordisplayed in photos may be showing slightly different on your computer monitor since monitors. Thank for your understanding.