Our product covers:Rubber stoppers for pharma-vials13mm & 20mm for antibiotics powder13mm & 20mm for lyophilization vials26mm, 28mm, 32mm Butyl Rubber Stopper For Biological Drugs15mm, 25mm rubber stopper for oral liquid13mm, 20mm, 26mm, 28mm, 32mm Teflon/PET Laminated rubber stopperRubber stoppers for blood collection tube