The set of solid rubber stoppers comes in different sizes. These stoppers are made of premium rubber material, durability and reliability. With their classic design, they are suitable for various occasions and can be easily installed and removed. They have multiple applications in laboratories, parties, and industrial settings. Features -Color:Black -Material:Rubber -Size:3.00X3.00X2.50cm/1.18X1.18X0.98in -Size:2.60X2.60X2.50cm/1.02X1.02X0.98in -Size:2.50X2.30X2.30cm/0.98X0.90X0.90in -Size:2.50X2.00X2.00cm/0.98X0.79X0.79in -Size:2.50X1.80X1.80cm/0.98X0.71X0.71in -Size:2.50X1.60X1.60cm/0.98X0.63X0.63in -Size:2.50X1.40X1.40cm/0.98X0.55X0.55in -Size:2.50X1.30X1.30cm/0.98X0.51X0.51in -Size:2.50X1.00X1.00cm/0.98X0.39X0.39in -Size:2.10X0.82X0.82cm/0.83X0.32X0.32in -This set offers a range of size options to meet different sealing needs, from test tubes to bottles. -Made of selected rubber material, these bottle stoppers are and resistant to various elements. -These tube stoppers are solid, tapered, easy to seal your containers to avoid accidental leaks or spills. -Easy installation and removal make them convenient to use, suitable for a wide range of applications in various fields. -Perfect for sealing test tubes, flasks, and other laboratory equipment, as well as for sealing bottles, jars, and other containers in the kitchen. Package list: 25 x rubber stoppers