1000pcs 20mm Butyl Rubber Stopper Plug，Self Healing Injection Ports Solid Seal and 1000pcs Aluminum FILP Off Cap for Glass Bottle Vials

Package list: 1000pcs 20mm Butyl Rubber Stopper Plug+ 1000pcs 20mm Aluminum FILP Off Caps Material: Butyl Rubber，Aluminum Size: 20mm（0.8in） Application: 1.These stoppers can be used to make self-healing injection ports in Mason jar lids or medicine bottles. 2. Mainly used for mushroom growing and liquid culture production.

• Package list: 1000pcs Butyl Rubber Stopper and 1000pcs aluminum filp off cap. Butyl Rubber: Color: Grey; Inside diameter: 13mm; Outer diameter: 20mm; High: 9mm; Flip Off Aluminum Caps:Inside diameter: 20mm; Outer diameter: 22mm; High: 8.5mm , The combination of the two caps, Suitable for: 20mm Glass Vial
• Compatible with most bottles of the same size aluminum cap or aluminum plastic cap. Self-healing rubber stopper for a good seal. Culture can be injected without removing the rubber stopper Needle
• Butyl rubber stopper: made of rubber, durable, washable, reusable, corrosion-resistant; used with aluminum bottle stoppers, suitable for storing any liquid or solid
• Aluminum cap: It is made of aluminum sheet and can be added with butyl rubber stopper to prevent impurities from entering, keep the substance in the bottle stable, and have a longer service life
• It is very suitable for laboratories, liquid culture, brf tanks, injections, supplementary matrix tanks, etc. Very convenient for experimentation and storage of liquids or solids.