This 1.5'' winterizing plug with O-ring is perfect for above-ground and in-ground pools during winter. Made of high-quality material, it can tolerate extremely cold temperatures without slipping or shrinking. It prevents damage to pipe lines due to expansion of chilled water. Quality guaranteed with trustful customer service. Features 1. Ideal winterizing plug for Above-ground and In-ground pools during winter season 2. Plugs are made of high-quality material to tolerate extremely cold temperatures without slipping or shrinking 3. Helps prevent damage to pipe lines due to expansion of chilled water 4. Quality Guarantee. We have faith in our product and always back it up with trustful customer service, please reach out to us if you have any questions or problems about our products. Specification Material: PP Color: White Size: 1.5'' Package Includes: 1 x Pool Plug Cap