smseace 30pcs 000#-10# Black Solid Rubber Stopper 13 Sizes Tapered Shaped Stoppers Plug for Sealing Sewer Pipes，Chemical Test Tubes (D-048-13S)

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The smseace 30pcs Rubber Stoppers set includes a variety of sizes (000#-10#) designed for a perfect fit in various applications, from laboratory experiments to aquarium use. Made from high-quality, chemically resistant rubber, these stoppers provide a reliable seal to prevent leaks and drips, ensuring your liquids stay contained.