It didn ’ t state this is what it was for in directions but how I use it. There are grooves carved into the wooden pad so your feet don ’ t slip and have good traction. Comfortable to use and birey be birli hard or easy of a workout you want.Allahummanfa'ni bima 'allamtani wa 'allimni ma yanfa'uni wa zidni 'ilman walhamdulillahi 'ala kulli hali