This set includes a teal nonslip platform with a premium cushion top four original purple risers and instructional to create the foundation of any workout program. The original health club size platform stepping surface with a nonslip top for added safety and a comfort cushion (Non-Latex) top that is easy on the hands feet and back. Burn more calories the higher you step with 4In. To 6In to 8In options using the 16In l x 16In w x 2In h risers. These sturdy risers can be used on any type of indoor flooring from carpet to concrete to hardwood without leaving behind scratches. The Step is a great home Fitness tool for beginners to experts and is customizable for a variety of aerobic and strength exercises.