Based on this product's specifications, here are some alternatives and similar models
Step platform HMS 17-5-050 black — aerobic step for cardio and group workouts
Summary description:
HMS Step 17-5-050 is a black aerobic step platform designed for step aerobics, cardio training and group fitness classes. The compact, low-profile platform provides a stable surface for stepping exercises, knee-friendly aerobic routines and interval training. Suitable for home workouts, gym sessions and group classes that require a durable, non-slip stepping surface.