MATERIALOur cabinet knobs are made of high-quality aluminum alloy, which is sturdy, and long-lasting. Excellent black finish with fine craftsmanship to keep the metallic shine for a long time.The finish feels comfortable and the edges are smooth and not rough, preventing sharp and rough edges from hurting your hands when you use them. SIZETop diameter:1.18inch(30mm), base diameter:0.86(22mm),Height:0.86inch(22mm). Our cupboard knobs are moderately thick and elegant in appearance for easy everyday use. WIDELY USEDThe black door knobs are perfectly apply to any kitchen cabinet,bathroom,cupboard,closet and much more Excellent surface gloss look, texture and feel, make your cabinets and drawers look simple and elegant. You can choose them for different use.