10-in-1 Fitness KitSet of 10 Pcs Ab Wheel Roller Kit : 1* AB Roller Wheel, 1* Thick Foam Knee Mat , 2* Resistance bands, 2* Push Up Bars Handles Grips, 2* Core Sliders, 1* Stretched Band, 1* Jump Rope, 1* Guide Book, 1* Gift Box Package. 4 Wheels , holding up to 440lb. Made of durable non slip rubber and strong stainless steel that ensures stability and comfort for your workouts, silence, never damage carpet or wood floor. Thicker knee pad is made of NBR material for