Check the listing for details. 16" Adjustable Aerobic Stepper Exercise Workout Step Platform with 4 Risers. Color: Grey&Black, Condition: New. Listed at 34.69 USD. Specifications:Color:Grey+BlackItem Weight:13lbsPlatform Material:HDPE+PVCBody & Risers Material:HDPE+TPRLoad Capacity: 300LBS 1-layer height:5.7inch2-layer height:7.67inch3-layer height:9.64inch4-layer height:11.61inchPlatform Size:16.14*15.74*11.6inchFeatures:NON-SLIP PLATFORM: Slip-resistant, shock-absorbing high step aerobic platform with 1 additional removable risers, provide a steady, safe, space-efficient and comfortable step workout experienceEASY HEIGHT ADJUSTMENT: Increase workout difficulty and tweak your aerobic exercise routine according to your fitness level with 4 different height levels (6''-8''-10''-12'') using 4 additional stackable risersHIGH-DENSITY POLYETHYLENE MATERIAL: Constructed of recyclable, high-quality polyethylene material, High Step Aerobic Platform can support up to 300 pounds, perfect for both low and high-impact step exercisesCONVENIENT TRANSPORTATION: Lightweight, compact and easy to install, you can takeAerobic Platform anywhere you want, be it the gym, your workplace or your home