Go higher with The Step. Two additional The Step Original Aerobic Risers allow you to intensify your workout by increasing the height of your Health Club Size Platform by an extra two inches, so you can burn more calories. Each black riser is made with four nonskid feet to prevent the platform from sliding or moving during exercise. The 16" L x 16" W x 2" H risers can be used on any type of indoor flooring from carpet to concrete to hardwood without leaving behind scratches. The Step is great home-fitness tool for beginners to experts and is customizable for a variety of aerobic and strength exercises. Made in the United States, the risers are crafted from durable, recyclable high-density polyethylene that supports up to 500 lbs beneath a platform. This product is backed by a 90-day manufacturer's warranty period.