Features: 1Balance Training: While sitting in class or working at a desk, this balance disc can exercise your balance and overall coordination to improve core strength. 2The PVC Material: Made from premium PVC material, the dynadisc with 34cm diameter is non slip, which enables longer service life and more convenient using. 3Wide Application: Suits perfectly for various training, including but not limited to core strengthening, waist training, aerobic exercise and so on. 4Two Sided Design: The smoother side has round humps, while the coarse side has larger humps, making the balance cushion non slip and ideal for comfy massage. 5Premium Present: You can give this workout balance disc to your family and friends as an excellent present for Christmas, birthday, anniversary and more. Package included: 1 x Balance Disc 1 x Syringe Type Inflator