Four play positions on this kids sensory swivel chair promote brain development and body coordination as children sit, lie down, or kneel on the petal-shaped seat. The 20.5 x 20.5 in PP seat sits just 6 in off the ground, so kids can spin and tilt while staying close to the floor. Ball bearings in the center allow smooth, quiet 360° rotation, while non-slip foot pads help keep the 21 x 19.5 x 10 in base steady. A heavy duty metal base supports up to 220 lbs and the rounded edges help reduce bumps during active play.