Seat: Concave upholstered seat with forward sloping edge and integral foam bumper guard. Seat measures 20.5" Wide. With 5/8" thick (9-ply) seat board. Nominal foam thickness 2" with 4" rearward angle.
Backrest: Backrest height adjustment feature allows for adjustment up or down 3", qucikly and securely (without the use of a noisy ratchet mechanism) Back measures 17.5" wide by 19.5" tall with 3/8 thick (5-ply) back board with 1/2" foam thickness. 4mm (5/32") thick polypropylene back panel with edge guard.
Base: Large, five legged, solid cast aluminium base with caster to caster diameter of 28.7" and maximum width of 27.4"
Seat Height: For low working heights such as desk and benches 32" tor shorter. Provides a range 17-21"
Casters: Two inches in height with dual soft wheels. Casters resist movement when the seat is unoccipied. Plastic collar around caster stem to match base. Standard Casters have grey tread.
Footring: No Footring
Armrests: Cast Aluminium arm upright with arm adjustment and 3.5" wide and 9" long x 7/8" thick urethane arm pad
For non-critical applications (areas without clean room ratings, electrostatic dissipative needs or specialized material requirements); features powder-coated metal parts