VAA1128 Features: * Speed bag platform * Reinforced steel tubes that support the platform allows all of the energy to be transferred back through the platform to the speed bag while in use * Adjustable worm drive mount allows each user to locate the specific height for their desired level of performance * Mounting brackets allow you to mount the platform onto a solid object like a cement wall or studs in wall * Protective platform ring guard around entire platform * 360 degree chain link bearing swivel * Solid steel chrome guide shafts * 4 Locking screws for secure platform positioning * Comes with mounting bolts for both cement and wood mounts * Speed bag not included * 13" Height adjustment worm drive * 2" High density wood platform 23" Dia * Steel frame measuring: 2" x 2", 2" x 1" Includes: * Assembly is required (tools included) Dimensions: * Assembled dimensions: 32" x 20" x 31" * User dimensions: 48"x 36" x 72"