OUNONA 19pcs Lab Test Tube Flask Stopper Seal Rubber Stopper Plugs for Assorted

Package List 19 x Stoppers Features -Size:1.90X1.90X2.60cm/0.75X0.75X1.02in hole -Size:1.50X1.50X2.00cm/0.59X0.59X0.79in test tube sealing stopper -Color:White tubes -Size:2.80X2.80X2.80cm/1.10X1.10X1.10in rubber stoppers -Size:2.30X2.30X2.60cm/0.90X0.90X1.02in clear -Size:2.50X2.50X2.80cm/0.98X0.98X1.10in stoppers -Size:3.30X3.30X2.80cm/1.30X1.30X1.10in handle -Size:3.60X3.60X3.00cm/1.41X1.41X1.18in flask and stopper with hole -Size:1.70X1.70X2.40cm/0.67X0.67X0.94in grip -Material:Rubber rubber plugs -Size:2.00X2.00X2.60cm/0.79X0.79X1.02in rubber plugs for holes -Size:1.30X1.30X1.60cm/0.51X0.51X0.63in rubber stopper - for chemical industry, medicine and other scientific researches use. plug -Smooth and , will not do damage to the bottles or test tubes in laboratory flask plugs. -These rubber stoppers are using a suitable shape design, easy to insert and pull plugs. -It can be used with the test tube It is a necessary sealing rubber stopper for experiments rubber stopper plug. -Small and compact, easy to store and use, not taking up any space of home or laboratory flask rubber plugs.Goods Descriptiontest tube rubber stopper Simple in structure, very easy to use.rubber stopper plug Small and light, easy to take; strong sealing; good silicone stopper, and reliable.flask rubber stopper If you are looking for some flask stoppers, then you must not miss our rubber stoppers.flask rubber plugs Suitable for professional and personal use

• Rubber plugs for holes: it can be used with the test tube, it is a necessary sealing rubber stopper for experiments,test tube sealing stopper
• Rubber stopper with hole: smooth and , will not do damage to the bottles or test tubes in laboratory,rubber stoppers
• Rubber sealing plugs: these rubber stoppers are using a suitable shape design, easy to insert and pull,flask rubber stopper
• Test tube stopper: widely applied in laboratories, research institutes, universities and other places,rubber stopper plug
• Rubber plugs for holes assorted sizes: suitable for test tubes, flasks and other laboratory equipment that need to be sealed,rubber sealing stopper