Black Rubber Cone Stopper, 7.5mm, 1 pc

This high-quality black rubber cone stopper (7.5mm) is ideal for sealing flasks, test tubes, jars, and other laboratory glassware. Manufactured from durable, chemically and thermally resistant rubber compound 23-6-3 (GOST 7852-76), it offers a reliable seal. Dimensions: Height 15mm, Larger Diameter 10.2mm, Smaller Diameter 5.2mm, Middle Diameter 7mm. Please note: These stoppers have a rubber odor; consider this when using them in non-laboratory settings.