Yes4All Adjustable Aerobic Step Platform with 4 Risers &ndash; Health Club Size &ndash; Adjust 4&rdquo; 6&rdquo; 8&rdquo; Exercise Stepper 40-INCH LENGTH x 14-INCH WIDTH NON-SLIP STEP SURFACE: Slip resistant, shock absorbing aerobic platform & four original risers EASY HEIGHT ADJUSTMENT: Intensify workout difficulty by adjusting platform height from 4 to 6 to 8 using risers to challenge yourself & burn more calories HIGH-DENSITY POLYETHYLENE MATERIAL: Constructed of recyclable high-quality polyethylene. Support up to 200 pounds. Perfect for indoor and outdoor use VERSATILE STEPPER PLATFORM: Ideal for cardio workout, fitness, low & high-impact. Can combine with other fitness tools to get extra burning fat workouts 1 YEAR WARR - PLACE YOUR ORDER NOW: Comes with 1-year warr and 60-day return on the product, so you can feel confident in your purchase