This unique line of seating helps students keep proper posture with a light-textured shell that holds them in place, no slumping. The ergonomically designed compound contour of the shell fits the body and provides excellent support so that students experience less fatique. The waterfall front edge eases pressure on legs. Attachment is hidden under the seat with no rivets or exposed hardware. This seat is height adjustable from 15-20". Wt. 22 lbs. Ships UPS.