Tapered flask sealing plug: it has the good waterproof and effect, Bottle Plugs; Rubber plug: suitable for medicine, chemical industry, scientific research test tube use, Bottle Hole Stopper; Laboratory bottle stopper plug: perfect for the chemical industry, medicine and other scientific researches use, Rubber Stopper; Solid rubber sealing plug: the set contains 100 pcs test tube sealing plugs, a large quantity to meet your needs, Test Tube Plugs; Rubber sealing plug: simple in structure, very easy to use the sealing plug can greatly meet your scientific research use, Test Tube Sealing Plug
What's in the box
100 x Rubber Stoppers
