SILIPAC Keychain Kit Blue PVD Coated Metal Construction. 16in diameter) and (4) Flat-style key rings (1.1in diameter). PVD coated. Metal construction. Specifications for SILIPAC Blue PVD Keychain Kit: Manufacturer: SILIPAC Included Accessories: 2 Circle Carabiner 1.16" Diameter And 4 Flat-Style Key Rings 1.1" Diameter Package Contents: SILIPAC Blue PVD Keychain Kit 2 Circle Carabiner 4 Flat-Style Key Rings SILIPAC CHAINKIT-BLUE: Keychain Kit Blue PVD Coated Metal Construction