1)material:aluminium alloy+paper name card+soft PVC lanyard 2)used in school ,office 3)OEM or ... ,zinc alloy,stainless steel etc.2)Processing: die stamping3)Feature: soft enamel4)Size: according to your need5)Plating:gold or others ... you.Some other material such as PVC ,rubber ,leather,silicone with name paper inside for reference