Rubber Stoppers with Hole, 20mm to 26mm Tapered Plugs, 6 Pcs, Black, for Test Tubes, Flasks, Lab & Home Use

Rubber Stoppers are designed to securely seal test tubes, flasks, and other vessels, Whether you're conducting scientific experiments, storing chemicals, or using them for DIY projects, these bungs offer reliable sealing and easy insertion or removal. Specifications: Material : Rubber Size: Bottom Diameter: 20mm / 0.78"; Top Diameter: 26mm / 1.02"; Height: 25mm / 0.98" Color：Black Package Content: 6x Rubber Stopper Please check the size carefully before ordering. Please allow 1-5mm differences due to manual measurement.

• 【Detail Size】: Rubber Stoppers Size is Bottom Diameter: 20mm / 0.78" ; Top Diameter : 26mm / 1.02"; Height: 25mm / 0.98"; Package Include: 6 x Black Rubber Stoppers Plugs
• 【High-quality Material】: Test tube stoppers are made of high quality rubber. There is a hole in the center of the rubber plug for inserting a glass tube, convenient for meeting your needs.
• 【Tapered Design】: Smooth and tapered rubber stoppers plugs are easy to pull and insert，not easy to crack, shrink, harden or break.
• 【Wide Application】: Drilled rubber bungs with hole are suitable for laboratory, industrial and home use, and can be used as bottle stoppers, sewer plug, water pipe plug, or drain plug.
• 【Easy to Use】: Simply insert the stopper into the desired hole for an airtight seal.