Description Are you looking for a professional, yet affordable silicone stopper? Are you in search of a sturdy, trustworthy tool that can be used to do multiple jobs at once? If yes, look no further! Our high-quality silicone stopper set must meet your needs. It is one of the best choices for you. Features - Color: As shown. - Material: Silicone. - Size: 2.00X2.00X3.50cm/0.79X0.79X1.38in. - Multi-functional and versatile, can be used for professional and personal use. - Food-grade silicone stopper, safe and reliable, can be used with confidence. - Suitable for test tubes, flasks and other laboratory equipment that need to be sealed. - These silicone stoppers are using a suitable shape design, easy to insert and pull. - Smooth and , will not do damage to the bottles or test tubes in laboratory. Multi-functional and versatile, can be used for professional and personal use. Food-grade silicone stopper, safe and reliable, can be used with confidence. Suitable for test tubes, flasks and other laboratory equipment that need to be sealed. These silicone stoppers are using a suitable shape design, easy to insert and pull. Smooth and , will not do damage to the bottles or test tubes in laboratory.