Legs formed of 13 gauge, 1 1/4" full tube high strength low alloy steel. Each leg set made of one tube running side to side of the seat joined by 2 14 gauge steel brackets.
Seats are heavy duty and static free, high density polypropylene material with a light grain surface, injection molded into a one piece shell unit with 17 heavy duty reinforcingstructural ribs. The ergonomically designed opening in the shell back provides added comfort as well as a handle grip. The shell is atached to the frame with steel rivets underneath the seat, which offers no exposed hardware on the surface
Heavy duty molded plastic glides for added durability. Glides are fastened with rivets to prevent student tampering and are angeled to prevent tipping.