Looking for reliable sealing solutions? These Black Rubber Stoppers are just what you need! With an 18-pack, you'll have plenty on hand for various tasks. They are perfect for bottles, test tubes, and other lab equipment that require airtight seals. Made from durable rubber, they provide a snug fit and keep contents secure, whether you're storing substances or conducting experiments.
What makes these stoppers versatile is their size range, accommodating different openings while being easy to insert and remove. No more worrying about leaks or spills with these trusty stoppers in your lab kit! Whether you’re a student, teacher, or a professional, having these on hand will make your work smoother and more efficient.