28 Rubber Stoppers, assorted sizes, Black Tapered Lab B
The product is a set of 28 black tapered rubber stoppers, designed for use in biological laboratories. Made from high-quality rubber and originating from the United States, these stoppers come in assorted sizes to fit different laboratory needs. With a weight of 15 oz, these stoppers are a reliable and essential item for sealing and stopping laboratory equipment or containers during experiments and tests.