The double-wheel design of this Madico dual-wheel caster improves the maneuverability and mobility of your furniture. The twin wheels rotate independently to make turning or reversing direction effortless. The furniture caster operates smoothly, making it suitable for use on linoleum, ceramic and carpeted surfaces. A friction grip mounting stem that is 7/16" in diameter and 7/8" long make it easy to install. The dual-wheel caster is 2" in diameter and has a load capacity of 77 lbs (35 kg).