RS-4-1 Rubber Stoppers, Size 4, Drilled 1-Hole (1-Pound Pack),Black

Description

🔬 Seal the Deal with Style!

The RS-4-1 Rubber Stoppers are expertly crafted for test tubes, featuring a size #4 and a convenient 1-hole design. This 1-pound pack of black rubber stoppers is perfect for a variety of applications, from laboratory experiments to creative projects, ensuring a reliable and durable seal every time.