Blue/Orange with timer : Product Description: 【Auto Rebound Design】Our ab roller adopts automatic rebound technology, which helps protect muscles from stress during exercise. Moreover, the auto-rebound feature helps beginners tighten their core, standardize movement, and keep exercising for longer periods of time. The built-in smart braking system makes the rebound smoother and protects the user from injury. 【Multifunctions】Besides traditional exercise, you can also practise plank support to fully exercise your core muscles, including arm, chest, abdomen, back, buttocks and lower body muscles, etc. 【Double Wheel Design】Different from single or thin wheel Ab wheels on the market, this elbow support abdominal wheel has 105MM wide front and rear wheels for smooth rolling and better control. It can help you exercise every muscle and core while controlling your body more safely, especially for beginners. 【Wear-resistant material】The roller is wrapped with soft material, which has good sound insulation effect. It is safer to use and won't hurt the floor. The thickened foam pad design protects the elbows from damaging during long-time exercise. Its sponge grip, which is non-slip, sweat-absorbent, comfortable, fade-resistant and durable, will not make noise or scratch the floor, and has a longer service life. 【Convenient Design】Equipped with a mobile phone holder, stable and not falling off. Fully combine sports with entertainment to make sports more exciting. Specification: Color: Blue/Orange Material:ABS+Steel Pipe Size: 42*37*18cm Gender:Unisex Application:Universal, Fitness Equipment Application Usage:Home Exercise Function: Safety Brakes, Automatic Rebound, Intelligent Timing,Anti-Slip Tread Pattern, Sports Silent Bearing range: 100KG-200KG Package Included: 1* Abdominal Wheel Split waist twisting machine Size: length 29.5cmx width 21cm Weight: about 0.7KG Function: thin waist / thin arms / hip lift / thin legs Color: Purple/Orange Using premium bearing steel, our Ab workout equipment breaks with traditional ABS shaft designs for quieter, smoother twists and smoother twists. Feature: 1. Upgraded split design, the legs can be twisted at will, and the spacing of the twisting plates can be adjusted at will. 2. The unique foot massage contact design can massage the soles of the feet while twisting the waist. 3. Strong load-bearing 800KG structural mechanical structure, widening and thickening ABS material, strengthening load-bearing and improving stability. 4. 29.5cm/11.61in enlarged pedal, easy to use with shoes or big feet, suitable for all kinds of people. 5. Silicone design, firmly grip the ground, don't worry about sliding to various grounds when exercising, and protect the floor from scratches. Packing list: 1Pair Split waist twisting machine