Product name: Luminous Door BuckleColour:Grey,BlackMaterial:Zinc AlloySize:As the pictureScope of application: room door, security door, hotel door, etc. The equipment includes:1 x Luminous Door BuckleNote:Size for handbook measurement, there could be a 0 to 2 cm error, belongs to the conventional phenomenon.And because of the difference between diverse monitors, the image might not replicate the particular colour of the item. Thank you!