Description1. Product Name: keyhole cover (also known as lock cylinder cover)2. Product standard accessories: 2 top covers and 2 bottom covers (standard wood screw)3. Product specifications: Φ 53mm * 9mm (round cover)4. Product material: the top cover is stainless steel 304201 stainless steel bottom cover.5. Surface treatment: wire drawing (or customized chrome, copper polishing sealing oil, PVD plating, bronze, red bronze, etc.)