Weller A10LL Air Operated Luer Lok Syringe with Rubber Stopper,...
Liquid medicines are packaged in glass bottles with a rubber stopper, through which you can take the contents by cramming the needle with the syringe Stock Photo - Alamy
Rubber Plungers for Prefillable Syringes and Rubber Caps for Prefilled Syringe Needles
What Is the Function of Rubber Stopper in Syringe?
Medical Rubber Plunger Stopper for Disposable Syringe - China Rubber Plunger, Rubber Stopper | Made-in-China.com
Rubber piston for disposable syringe /butyl rubber stopper_OKCHEM