3 Layer Adjustable Aerobic Stepper S & XL Exercise Board

Raisers are included, so you can adjust the platform among 4-inch and 
6-inch high of your choice
Textured surface is non-slip, and shock absorbing, the surface is a 
slip-free, meaning you can have stability with every single set of 
steps
Dimension: 26.77-inch long and 11.02-inch wide, height is adjustable at 
4-inch and 6-inch
Constructed with the durable ABS material of long-lasting. Lightweight 
and easy to carry, assemble and store