Custom Leather Keychain 1)material:Pu leather,metal 2)logo type: ... . Material: Brass, zinc alloy, copper, iron etc. 2. Process: Die-cast, stamping, hot-cast, printing, photo-etches are available. 3. Finishing: Various electric ... , debossed. 5. Size: 35mm, 40mm, 45mm, 55mm, 60mm, 70mmdiameter etc (custom size is accepted) 6. Thickness: Normally 3mm, 3, 5mm, 4mm ...