Custom Leather Keychain 1)material:Pu leather,metal 2)logo type:printing,laser,engave 3)SGS certificate 1,Product Description1. Material: Brass, zinc alloy ... , debossed. 5. Size: 35mm, 40mm, 45mm, 55mm, 60mm, 70mmdiameter etc (custom size is accepted) 6. Thickness: Normally 3mm, 3, 5mm, 4mm ...