75 PCS Lab Rubber Stoppers Water Table Hole Plugs 7 Multiple Sizes And Colors
75PCS Lab Rubber Stoppers, Coldairsoap Water Table Hole Plugs 7 Multiple Sizes and Colors for Round Plastic Pool Ceramic. Wide Application: Solid rubber stoppers are widely used for hole plugs, spraying, coating, and paint protection, and widely for blocking transmission, brake, vacuum pipelines, and ports in chemicals, machinery, construction, or laboratories.