The Professional Speed Bag Platform from TKO offers solid steel and wood construction to provide the user with a professional strength platform that will withstand the most intensive and rigorous training routines, The platform itself is 24" in diameter and crafted from 100% hardwood. The frame is made from steel which provides excellent vibration reduction and resistance to everyday wear and tear. The platform is designed to slide easily along the sturdy frame, providing quick and simple height adjustment making this a great item for kids and adults.