DESCRIPTION Super Heavy Duty caster wheel made of metal only and resists high temperature. It comes with a capacity of 1500KG ea. Overall Height: 255MM, Type: 2 Swivel + 2 Fixed. Qty: 4pcs Set. For flat ground only. Grease point available. Super heavy duty all metal caster wheels that can endure high temperature and carry very heavy load. They can resist heat up to 300 Celsius degrees and take up to 3000KG each caster for the largest size in 12 inch. - Overall Height: 255MMPlate Size: 150MM X 130MM X 9MMQuantity in the package: 4pcs Set - Type included: 2 Swivel + 2 Fixed - Wheel Width: approx. 70mm - Please refer to one of the photos for detailed size and key specs. - Safety Warning: Suggest to use on leveled ground, and handle by powered equipment. The brake alone may not be powerful enough to secure the heavy load. Two main features: 1. super high capacity ranging from 1 Ton to 3 Ton each caster2. it can resist heat up to 300 celsius degrees - The wheel is covered by grease and oily No any additional outer layer for the wheel - The wheel has a flat surface and not suitable for rough terrain or soft ground. The frame is painted and can have scratches. Under high temperature: 1. Paint on the frame might be burned away2. Suggest to cut the weight capacity by half3. Grease the product more frequently or use heat resistant grease oil. - PACKAGE INCLUDE 4pcs Set Caster Wheel (2x Swivel(no Brake)+2x Fixed(non-swivel))-loosely packed in tough bag