Function: These expansion plugs are to winterize your swimming pool, protecting it from harsh winter and stain damage. The tapered plugs, covered by rubber, can also be used to block or seal some holes, pipes, drains, sinks, tanks, etc. in your pool, kitchen, bathroom or yard. Used as pipe plugs, to plug skimmers, returns and cleaner lines - to prevent water from entering the pipes during winter. Expansion plugs have other uses too, such as pressure testing pool lines or other methods of leak detection, or stopping water flow from the pool when equipment repairs are made 100% Band new and high quality. Material: Rubber + Stainless Steel colour: Black Package Contents: 6 x Pool Plug(2 x 25mm, 2 x 38mm, 2 x 51mm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 95 hours Hope you have a pleasant shopping experience!