Description: Durable MaterialThe drain cleaning cover is constructed of stainless steel for maximum expansion to ensure a tight seal. Compared with plastic wing nuts, our stainless steel wing nuts are more stable, reliable and durable for long life. Easy To UseOur expansion pipe plugs can prevent water from entering the pipes, which greatly protects your pipes. It is convenient and labor-saving to use. Simply screw the plugs into all return and drain inlets, no wrenches required. Wide useSewer plugs can be used as pipe plugs to plug storage devices, and threaded pool return plugs are suitable for most pipes. It can be used in many places, such as kitchen and bathroom sinks, outdoor swimming pools or small indoor pools. Protect PipesYou will receive 1 piece assembled drain cleaning cover, which can help you protect your sink and pipes and prevent pipes from breaking. Extensive CompatibilityThe inner diameter of the pipe test plug is 38-47, 45-65mm, which can be universally matched with most standard-sized drain pipes. There are two sizes, and you can choose the size according to your needs. Specification: Material: stainless steel Color: black,blue Size(approx.): (upper diameter x lower diameter x rubber height x total height) type A 4.7 x 3.8 x 5.5 x 14.5cm/1.85 x 1.50 x 2.17 x 5.71inch type B 6.5 x 4.5 x 5.5 x 14.5cm/2.56 x 1.77 x 2.17 x 5.71inch Package Included: 1 PC x Cleanout Pipe Plug Note: 1.Due to the light and screen difference, the items color may be slightly different from the pictures. 2.Please allow 1-2 cm differences due to manual measurement.