Product Description Specification: Yellow: 10 pounds, inner and outer diameter 5*8mm, length 1.2m Red: 15 pounds, inner and outer diameter 6*9mm, length 1.2m Blue: 20 pounds, inner and outer diameter 5*9mm, length 1.2m Green: 25 pounds, inner and outer diameter 5*11mm, length 1.2m Black: 30 pounds, inner and outer diameter 7*11mm, length 1.2m Color: yellow, red, blue, green, black Material: Latex/TPE Package content: 1* pull rope (11-piece set) 1.Made of natural latex: Permium materials to ensure maxmium life, health & safety durable use : The anti-snap bands are made of natural latex that is stackable, non-irritant and odor free, it's an excellent choice for your health and exercise. With sweatproof and skidproof handles, strong fabric and steel D buckles to ensure maximum life and safety during use. 2.Adjustable Resistance Bands Comes as a set of 5, long colored exercise bands: Yellow (10 lbs),Red (15lbs),Blue (20 lbs), Green (25 lbs), Black (30 lbs). ALL bands can be combined together to provide up to 100 lbs. 3.Great with any workout,Multiple uses : As true resistance is maintained through every part of a motion.The resistance band set can be great with any popular workout like Yoga, Pilates and more. Or use them for general exercise, stretching, strength training, power weight programs. 4.Mobile gym, Build MusclesYou can use the resistance bands with ankle straps and door attachment to exercise at home or outside.You can do exercise anytime and anywhere to burn fat and shape your body. 5.Portable and easy to store : These bands are so lightweight and this resistance kit comes with a cloth pouch. It is very convenient to carry and store.