StarTech.com Balance Board for Standing Desks or Sit-Stand Workstations - Standing Desk Balance Board with Soft Carpet Surface - This balance board for standing desks gives you a fun and easy way to add gentle movement to your workday when standing

Supports weight capacity of 300 lb. (136 kg) Made of durable plastic with a soft carpeted surface for added comfort Encourages gentle movement while standing, to help engage the stabilizing muscles in your legs and core Standing desk balance board rests on a spherical base, allowing a wide range of movement Easy to move out from under desk, with foot control