‎16 x 16 x 3.5 inches

GREAT ADDITION TO DAILY WORKOUT: Help improve balance, achieve better core stability, increase alertness, and support multiple exercises like pushups and planks HEALTH RESTORATION: Balance boards for adults & care facilities worldwide to regain strength by standing on them & shifting the weight in a 360 degree rotation ANTI SLIP & SOLID BUILD: The balance trainer supports 300 pounds; Anti skid pad on the surface improves grip; The 15,75 inch diameter accommodates both feet