Features: Pool plugs: you can get 1 black plug assorted in 6 sizes optional, 25mm/32mm/38mm/45mm/51mm/63mm, which can help you protect your pool in cold winter. Widely applied: this pool plug is used as a tube plug, which can prevent water from entering the tube in winter; and helps prevent water outflow from the pool during equipment maintenance. Stable performance: the winter plug for pool is made of stainless steel and PVC, stable and firm, which is resistant to cold and does not slide or shrink; you can use it for a long time. Practical usage: these expanded rubber plugs can protect your swimming pool tube by preventing water from entering; you only need to screw the plugs into the fittings. Convenient: these pool plugs can be used as tube plugs for various storage devices; you can use them in your outdoor pool, kitchen and bathroom sinks, and small indoor pools. Specifications: Material: Stainless Steel, PVC Color: As shown in the picture Size Options: 25mm/32mm/38mm/45mm/51mm/63mm Package Includes: 1 pc Pool Plug Note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before purchasing. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!