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Description Their tapered shape ensures a secure seal in a variety of containers, such as flasks and test tubes, making these conical rubber stopper assortments essential for laboratory experiments and chemistry supplies for labs. The soft material and professional craftsmanship provide an effective laboratory rubber stopper that minimizes risk of leaks and ensures a reliable closure during mixing, heating, or sample storage.Our rubber bungs stoppers feature a convenient dual-hole design, making them the ideal rubber stoppers with hole for laboratory use, especially when you need precise control over gas or liquid flow
Features - Color: Beige
-Material:Rubber
- Size: 2.80X2.60X2.60cm/1.10X1.02X1.02in
-Versatile compatibility: easily fit into test tubes, conical flasks, or vials with this rubber bung for test tube, convenient for diverse chemistry supplies for labs
-Precise double hole design: enjoy seamless integration in the lab with our drilled rubber stopper; dual holes allow for precise gas or liquid channels, meeting varied laboratory rubber stopper assortments needs
- solid construction: manufactured as a solid rubber stopper with hole, these reusable stoppers promise use and reliable stopper performance
-Pack quantity: providing ample rubber stoppers for holes for highfrequency lab replacements and experiments
-Seal performance: the tapered rubber stopper sealing rubber ensures reliable nonleak fit for chemistry flask stopper applications, keeping experiments secure and messfree