23pcs White Tapered Rubber Stoppers Set for Flask and Glassware, Solid Conical Rubber Bottle Stoppers Burrfree Exterior, Prevents Evaporation, Suitable for Chemistry Lab

Package Include23 x stoppersFeatures-Color:White-Material:rubber-Product Info:Laboratory rubber stopper-Size(Size 9):2.20X1.50X1.10cm/0.87X0.59X0.43in-Size(Size 4):3.00X2.80X2.20cm/1.18X1.10X0.87in-Size(Size 3):3.20X2.80X2.50cm/1.26X1.10X0.98in-Size(Size 6):2.60X2.40X1.70cm/1.02X0.94X0.67in-Size(Size 2):3.80X3.00X2.80cm/1.50X1.18X1.10in-Size(Size 8):2.30X1.80X1.40cm/0.91X0.71X0.55in-Size(Size 1):4.20X3.30X3.20cm/1.65X1.30X1.26in-Size(Size 7):2.50X2.00X1.50cm/0.98X0.79X0.59in-Size(Size 5):2.80X2.50X2.00cm/1.10X0.98X0.79in-Size(Size 10):2.00X1.50X1.10cm/0.79X0.59X0.43in-Scratch Free Protection: The surface of each flask stopper is finely polished, providing a secure plug for glassware to minimize risk of breaks and preserve your valuable lab equipment over time laboratory rubber plugs-Extensive Stopper Variety: 23 round rubber stoppers cover different sizes, so every set includes the perfect rubber stopper for bottle, test tube, flask, or graduated cylinder found in teaching labs or research settingsGoods Descriptionflask and tube stoppers Sealing rubber stopper kit, featuring conical rubber stopper varieties, make sure solid lab stopper performance whether used as rubber plug assortment for bottle, test tube rubber plug, or rubber bung for flask. test tube stopper These reliable stoppers keep your solutions secure, fit most glassware, and reduce breakage risks, supporting all lab work needs

• Leakproof performance: the solid lab stopper construction of every white rubber stoppers unit promises airtight closure, facilitating safe storage and transfer of chemicals in educational and science settings,rubber corks assorted sizes,assorted lab stoppers
• Material quality: crafted from rubber, these tapered rubber stoppers combine optimal elasticity with durability, allowing repeated use as a laboratory stopper without losing sealing capability,plug holes rubber stopper,rubber bung for flask
• High elasticity and shape retention: these rubber bungs are manufactured with optimal elasticity, enabling repeated use as rubber taper plugs without wear or permanent shape change, delivering ongoing reliable seals,rubber stoppers,lab rubber stoppes
• Complete assortment coverage: this assorted rubber stopper set includes different sizes (000#8#), making it a perfect science lab stoppers solution for glassware such as test tubes, flasks, and graduated cylinders,white rubber stoppers,test tube stopper
• Protective surface finish: each rubber stopper for flask features a refined, nonabrasive surface, preventing accidental damage when sealing glassware and acting as a secure substitute for traditional stoppers,chemistry lab stoppers,solid rubber stoppers