23pcs 000# - 8# White Tapered Shaped Solid Rubber Stopper for Lab Tube Stopper Plug Assortment Kit Rubber Bung for Chemistry Experiment Bottles and Test Tubes

DescriptionRubber stopper set includes round rubber stoppers in a wide range of sizes, ideal for flask and tube stoppers in laboratory experiments. The resilient material resists distortion during repeated use, making these rubber bungs a dependable choice for sealing chemistry lab equipment or acting as a hole plug rubber insert.Features-Color:White-Material:rubber-Size(Size 1):4.20X3.30X3.20cm/1.65X1.30X1.26in-Size(Size 2):3.80X3.00X2.80cm/1.50X1.18X1.10in-Size(Size 3):3.20X2.80X2.50cm/1.26X1.10X0.98in-Size(Size 4):3.00X2.80X2.20cm/1.18X1.10X0.87in-Size(Size 5):2.80X2.50X2.00cm/1.10X0.98X0.79in-Size(Size 6):2.60X2.40X1.70cm/1.02X0.94X0.67in-Size(Size 7):2.50X2.00X1.50cm/0.98X0.79X0.59in-Size(Size 8):2.30X1.80X1.40cm/0.91X0.71X0.55in-Size(Size 9):2.20X1.50X1.10cm/0.87X0.59X0.43in-Size(Size 10):2.00X1.50X1.10cm/0.79X0.59X0.43in-Multiple Size Options: The stopper assortment kit includes carefully selected sizes (from 000# to 8#), catering to every lab need from plugging test tubes to sealing Erlenmeyer flasks as required by experiments-Airtightness: These solid rubber stoppers make sure a secure and reliable seal, acting as hole plug rubber for various lab glassware and preventing unintended exposure of samples-Flexible and Resilient: The rubber stopper set delivers perfect elasticity for daily use—each rubber bung for flask can be inserted and removed repeatedly without risk of permanent deformation or poor fit-GlasswareFriendly: Featuring a smooth and seamless finish, every white tapered stopper minimizes friction, reducing wear on your glass and offering a gentle, protective plug for regular lab activities-Resistant and Reliable: These laboratory stoppers is practical, as their robust rubber composition ensures consistency and stability even in the presence of

• Multiple Size Options: The stopper assortment kit includes carefully selected sizes (from 000# to 8#), catering to every lab need from plugging test tubes to sealing Erlenmeyer flasks as required by experiments
• Airtightness: These solid rubber stoppers make sure a secure and reliable seal, acting as hole plug rubber for various lab glassware and preventing unintended exposure of samples
• Flexible and Resilient: The rubber stopper set delivers perfect elasticity for daily use—each rubber bung for flask can be inserted and removed repeatedly without risk of permanent deformation or poor fit
• GlasswareFriendly: Featuring a smooth and seamless finish, every white tapered stopper minimizes friction, reducing wear on your glass and offering a gentle, protective plug for regular lab activities
• Resistant and Reliable: These laboratory stoppers is practical, as their robust rubber composition ensures consistency and stability even in the presence of weak laboratory chemicals