Introducing the Walter Stern Gas Collecting Rubber Bulbs 202A—your essential tool for efficient gas collection in laboratory settings. Made from high-quality rubber, these bulbs are designed for durability and flexibility, ensuring a secure grip and easy handling. With a capacity ideal for various experiments, they facilitate precise gas collection without leaks. The ergonomic design allows for comfortable use, making them perfect for both professionals and students. Whether you're conducting experiments in chemistry or biology, these rubber bulbs are a reliable choice for all your gas collection needs.