12/8 key anti-theft door round cylinder lock entry door round cylinder lock outdoor door lock family lock door lock lock coreSPECIFICATIONS is_customized: Yes Use: Hotel Office Home Room Door Lock Type: Copper Lock Cylinder Surface Finishing: Chrome Plated Security Grade: Over D Grade Product Name: Anti theft Door Entrance Door Lock Core Origin: Mainland China Model Number: Universal standard lock cylinder Material: Brass Keys Included: Yes Keys: 12pcs Keys or 8pcs Keys Grade Classification: Hardware Accessories, Furniture Lock Fit Door Thickness: 35~130mm Fit Door