Amazon.com: The Step (Made in the USA) Original Health Club Aerobic Step Risers in Black for Use with The Step Aerobic Platform – Health Club Size (2 count)
Yes4All Aerobic Exercise Workout Step Platform Health Club Size with 4 Adjustable Risers Included and Extra Risers Options - Green/Black
Amazon.com: Giantex 16'' x 16'' Step Aerobic Platform w/ 4 Risers, Adjustable Height 4"- 6" -8"-10", 12" High Workout Aerobic Stepper for Gym, Home, Office : Sports & Outdoors
10 Best Aerobic Steppers Of 2023, According To Reviews