A semi-sitting stool specially designed to promote dynamic and active seating. The optimal support surface and rounded base allows the user to tilt and swivel in all directions while sitting. It is designed to fit fun an interactive spaces such as, classrooms, studios and waiting areas. Product Size: D30 x H46-53CM Active Stool Portable, Light Weight Handling Groove Under Seat EPDM Foam Padded Seat 300mm Anti-Slip Rubber Base 5 Year Warranty   1. Seat Padded with EDPM foam. With optional colour rings. 2. Height extendable body A75 mm extension collar for different height requirement.  3. Base 300mm diameter case with anti slip TPE rubber for excellent floor grip.