Features: Pool plugs: 1 black plug set in 6 sizes—25mm, 32mm, 38mm, 45mm, 51mm, and 63mm—to help protect your pool during winter. Widely applicable: These plugs function as tube plugs to prevent debris from entering pipes during winter and to prevent water outflow during equipment maintenance. Stable performance: Made from stainless steel and PVC, these winter pool plugs are durable, cold-resistant, and maintain their shape without slipping or shrinking for long-term use. Practical usage: The expandable rubber design allows secure insertion into pool return lines and other plumbing openings. Versatile application: Suitable for outdoor pools, indoor pools, sinks, and other plumbing fixtures requiring temporary sealing. Specifications: Material: Stainless Steel, PVC Color: Black Size options: 25mm, 32mm, 38mm, 45mm, 51mm, 63mm Package includes: 1 pool plug Note: Slight size variation of 1–3mm may occur due to manual measurement. Monitor color display may vary slightly from actual product color.