Kore Design Office PLUS Everyday Chair, Vinyl, Black

Help improve your focus and strengthen your core muscles with this wobble chair, which allows you to move and stretch as you work. A counter-balanced design keeps you stable for safety. Overall dimensions: 18-1/2inH x 15inW x 15inD (standard) 26-3/4inH x 15inW x 15inD (extended). Weight capacity tested to support 350 lb. Made of tough steel, chrome, PVC and high-density polyethylene for a strong design. Rounded, ergonomic base creates a wobbly design for freedom of movement. Counter-balanced, so you can sit upright without rocking. Assembly required.