Profile: Ross Handling Ltd. is a manufacturer of casters and wheels. Our product line includes casters, wheels, tube inserts, hand wheels and hand grips. Our plastic twin wheel casters come in a range of 40 mm diameter to 75 mm diameter, threaded stem, circlip or plate fittings. These casters are also used as chair casters, display casters and shopfitting applications. Our pneumatic & trolley wheels are light duty polypropylene wheels. Our round tube inserts & plastic plugs are featured with round tube inserts, caps, plastic plugs, and chair inserts to fit a variety of wall thicknesses (tube gauges). Their sizes range from ½" to 3" or 12 mm to 76 mm.