... visit our web site.Characteristic: 1.Inner diameter:11mm,12mm 2.Outer diameter:35mm,36mm, 40mm,or other size as customers ... special requirement 3.Height :10mm,15mm,30mm,32mm,40mm or other size as customers special ... , PP, PET, PE, PVC, material etc.Other specifications and colors can be producted, according to your requirement. Ink Roller used for coding dates