Out of stock The Step (Made in USA) Original Aerobic Platform – Circuit Size Grey Aerobic Platform and Original Black Risers Featured! $49.50 – $71.61 Make sure this fits by entering your model number. Made in the United States from durable, recyclable high-density polyethylene Includes circuit-size (28. 5” L x 14. 5” W x 4” H) grey aerobic platform and black risers