Colson 2 Series LoPro casters take trusted Colson manufacturing and package it in a low-profile design, handling working loads of up to 250 lbs. per caster. Ideal for usage on business machines, stock picking carts, warehouse dollies, and housekeeping carts, LoPro casters offer low load height and quick swivel response. Heat-treated double ball raceways provide reliable swivel ease. Zinc plating provides an attractive and durable finish to each caster.