Durable, tubular steel mesh provides practical organization. Convenient letter-size cube keeps files easily accessible and organized. Four casters two locking for mobility. Fits under most worksurfaces to save valuable floor space. Collapsible cube makes assembly a snap. Powder coat finish for durability. Color: Black Color Family: Black Caster/Glide/Wheel: Four 1 5/8" Casters 2 Locking Materials: Steel Mesh.