... and transmittance 2.thickness 1-30mm available imprint clear pmma keychain Features of clear acrylic keychain :1) Perfect ... can be customized as you like Item imprint clear pmma keychain Materialtop grade acrylic&perspex&plexiglassMain workmanshipcutting,grinding,polishing ... gifts,pictures frame,fish tanks ,calender,napkin box,display stand,electronic instrument panel,ball,light boxes and so on. ...