Mobestech 20pcs Test Tube Plugs Rubber Stoppers Tapered Design for Easy Insertion Sealing Bungs for Lab Research Universities

Package List 20 Tubes Stoppers Features -Size:1.70X1.70X2.30cm/0.67X0.67X0 test tube. -Hole diameter: 0.50cm/0.20inch test tube stoppers. -Color:black silicone plugs. -Material:Rubber rubber plugs for holes -Size:2.50X2.50X2.30cm/0.98X0.98X0 test tube plug with hole. -Smooth and , these sealing stoppers for test tubes will not do damage to the bottles or test tubes in laboratory rubber stopper with hole. -Small and compact, easy to store and use, not taking up much space of home or laboratory tapered lab plugs. -These rubber stoppers are using a suitable taper shape design, easy to insert and pull test tube rubber plugs. - for chemical industry, medicine and other scientific researches use, these rubber sealing stoppers fit your demands test tube sealing stopper. -The rubber plugs can be used with the test tube, a necessary sealing rubber stopper for experiments test tube plugs.Goods Descriptionrubber plugs Simple in structure, very easy to use, suitable for professional and personal use.flask rubber plugs Small size and light weight, these rubber plugs are easy to take, has good sealing effect for you to use rest assured.bottle stopper If you are looking for some test tube stoppers, then you must not miss our rubber plugs

• Test tube rubber plugs: these rubber stoppers with hole are suitable for test tubes, flasks and other laboratory equipment that need to be sealed.
• Hole plug: rubber stoppers tapered shaped silicon lab stoppers test tube bungs tube stopper plug for home laboratory flask test tube chemical stopper smooth and , these sealing stoppers for test tubes will not do damage to the bottles or test tubes in laboratory.
• Erlenmeyer flask stopper: fine workmanship with rubber material, and good durability, the sealing plugs can be used for a long term.
• Hole plugs: smooth and , these sealing stoppers for test tubes will not do damage to the bottles or test tubes in laboratory.
• Test tube plug with hole: rubber plug chemical industry, medicine and other scientific researches use, these rubber sealing stoppers fit your demands.