Model 4200 GFPO Steel base dolly CONSTRUCTION: DOLLY BODY: 3/8? Thick plate dolly base with 6? inside diameter straight sided well made from OE? DOM wall tube with a 3/8? thick welded floor assembly. The well floor has 4 drain holes. Well 2? deep. CASTERS: ? Attractive zinc plated finish ? 1/2" solid axle with lock nut ? 1/4" steel top plate and fork legs for durability ? Swivel has full double ball hardened raceways ? Grease fitting in the swivel raceway WHEELS: ? 4? x 2? Injection molded reinforced thermoplastic (GFPO) wheel has the same weight capacity of steel, yet incredibly light-weight and impact resistant. ? Flanged and sealed ball bearings ? 100% washable steam cleanable; has the best chemical resistance of any wheel, not affected by grease, oils, most chemicals cleaning solutions, salt, brine blood. ? Extreme impact strength, good abrasion and compression resistance, will not flat spot. ? Durometer: 65 Shore D (+/-5). ? Temperature range: -45 F to 250F WEIGHT CAPACITY: 1500 lbs. per dolly TEMPERATURE RANGE: -45 F to 250F WEIGHT: 35 lbs. each