Description The simple structure of these silicone test tube plugs makes them easy to use, whether you are a scientist or conducting experiments at home. Small size and lightweight design make these testing tube stoppers easy to transport and store, while their excellent sealing effect makes your experiments safe. Features -Color:White -Material:Silicone -Size:3.00X1.50X1.50cm/1.18X0.59X0.59in -These silicone stoppers are good for using in chemical industry, medicine, and other scientific research fields, providing an effective sealing solution for your experiments. -Designed to fit for test tubes and other laboratory equipment, these sealing stoppers are an essential tool for any laboratory or research facility. -The silicone plugs are of tapered shape design, easy to insert and remove, giving you convenience and ease of use. -Compact and lightweight, these silicone stoppers are easy to store and transport, good for using in both home and laboratory settings. -Constructed from silicone material, these sealing stoppers are smooth, ensuring that they will not damage your bottles or test tubes during use. These silicone stoppers are good for using in chemical industry, medicine, and other scientific research fields, providing an effective sealing solution for your experiments. Designed to fit for test tubes and other laboratory equipment, these sealing stoppers are an essential tool for any laboratory or research facility. The silicone plugs are of tapered shape design, easy to insert and remove, giving you convenience and ease of use. Compact and lightweight, these silicone stoppers are easy to store and transport, good for using in both home and laboratory settings. Constructed from silicone material, these sealing stoppers are smooth, ensuring that they will not damage your bottles or test tubes during use.