These 2-½” x 1” Hard rubber single wheel casters with wood grip stem are excellent for light applications, such as printer stands, office carts, small furniture, chairs and more. Single wheel furniture casters come definitive with a ball race for clear swivel action, zinc plating for decay defiance, and hard rubber wheels. This caster displays a hard rubber wheel with a Wood Grip Neck Stem.This caster also comes complete with the metal socket required for mounting a wood stem.