Raisers are included, so you can adjust the platform among 4-inch, 6-inch and 8-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: 31-inch long and 11. 5-inch wide, height is adjustable at 4-inch, 6-inch and 8-inch