10 Pieces Lab Solid Rubber Plugs Stoppers Bungs for Flask / Test Tube / 2 Sizes Safety & Reflective Gear Easy to use

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10 Pieces Lab Solid Rubber Plugs Stoppers Bungs for Flask / Test Tube / 2 Sizes Safety & Reflective Gear Easy to useITEM NAME: 10 Pieces Lab Solid Rubber Plugs Stoppers Bungs for Flask Test Tube 2 Sizes img *{margin: 0; padding: 0;. 10 Pieces Rubber Plugs. Used to seal flasks, test tubes, bottles and etc. Tow sizes, 10 pieces, satisty your different need. Made of high quality rubber, durable. Material: Rubber. Color: White.