Nylon tyres, white, wheel x width 160 x 50 mm, mounting plate, 2+ items, fixed castors. Supplied = assembled. Wheel diameter = 160 mm. Structure = fixed castor. Wheel material = plastic - nylon. Material of rim = nylon. Housing material = steel. Max. load at 4 km/h = 300 kg. Type of mounting = with top plate. Wheel width = 50 mm. Wheel bearing = roller bearing. Temperature resistance = -40 C to +80 C. Screw hole diameter = 12 mm. Hub length = 59 mm. Hub bore = 20 mm. Fixed castor plate dimensions = 135x110 mm. Swivel castor plate dimensions = 135x110 mm. Screw hole spacing = 105x84/76 mm. Housing surface = zinc plated by galvanization. Do not damage floors, non-marking. Highly resistant to wear, low roll resistance, durable. Temperature resistant from -40 C to +80 C. Sheet steel housing, electrolytically zinc plated in blue. Swivel bearing with dual turntable bearing. Small metal thread guard. Roller bearings.