The Metaphor Task Chair has the same contemporary styling and ergonomic design as the Metaphor Series Student Chair. It is height adjustable and has a wheeled star base, perfect for use in labs. The waterfall front, deep seat pocket and contoured bucket keep users comfortable. Rivets are concealed to prevent scraping and snagging. Quickship color options: Black or Navy seat with a Char Black base (N9TASK18 only). Options: Height adjustable gas cylinder for 13 ¾"-16 ¾" or for 15"- 19 3/8" seat height. Five dual-wheeled caster base, polypropylene seat, tubular steel frame, 10 year warranty, Greenguard certified for indoor air quality.