Description
Square Rubber Caster Cups Black 4‑Pack
| Shape | Square, with a circular recessed centre to accommodate round casters or legs. The square footprint provides extra stability on the floor. |
| Material | Heavy‑duty black rubber with a subtle textured surface that enhances grip on both sides. |
| Use | Ideal for office chairs, bed frames, dining tables, and any furniture with casters that needs to stay put and protect the floor. |
| Care | Wipe with a damp cloth; may be washed with mild soap and water. |
The square shape of these caster cups offers a distinct advantage over round cups: the corners provide additional gripping surface, reducing the tendency of the cup to rotate or shift. The black rubber is dense and durable, with a slightly concave top that cradles the caster and prevents it from rolling. The base has a pattern of grooves that break the suction effect on smooth floors, making the cups easy to lift and reposition without leaving marks, yet they hold firmly in place when weighted. The cups are thick enough to provide significant vibration damping, which can reduce the noise of an office chair rolling across the floor. They are also tall enough to contain the entire caster wheel, even those with a larger diameter. The set of four is the standard requirement for a chair, and multiple sets can be used for large furniture. The black colour is unobtrusive and blends with most furniture and flooring. The rubber is resistant to oils, grease and household chemicals, making these cups suitable for kitchen or workshop use. They are a robust, practical choice for anyone who wants to protect their floors without sacrificing the convenience of caster mobility when needed.




