Item Type: Balance Disc Material: PP Diameter: Approx. 35.5cm / 14in Function: Balance training, beginners please use your hands to hold on to the fixed object to prevent falls1Exercise Muscles: This anti slip board can exercise your balance and overall coordination to improve core strength, core muscle groups, core stability. 2Reduce Fatigue: By using this dynadisc balance board for standing desks, you can reduce fatigue, prevent back pain, improve posture and increase alertness. 3High Safety: This balance board is designed with massage contacts, which can effectively enhance the friction, better anti slip, easier and safer to use. 4Spherical Base Design: This non slip balance board supports 360 rotation, 12?20 tilt, perfect for you to adjust your posture to exercise your muscles. 5Scope of Use: Improve balance and coordination with hundreds of exercises such as push ups, planking, mountain climbers, hiccups, squats, tree shapes, etc. 1 xBalance Disc Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store