Feature: 1. Used as pipe plugs, to plug skimmers, returns and cleaner lines to prevent water from entering the pipes during winter. 2. Use the freeze plugs to protect your pool against the harsh winter season. A simple solution which prevents your pool from running into serious damage. 3. Made of high‑quality rubber, it has maximum expandability and can make sure a tight sealing, corrosion resistant. 4. As pressure testing pool lines or other methods of leak detection, or stopping water flow from the pool when equipment repairs are made. 5. Built to meet or exceed standard specification, strictly follow factory quality control, compact size, easy to carry. Specification: Condition: 100% Brand New Item Type: Expansion Plugs Material: Rubber Color: As shown in the picture Size: Approx.38mm/1.5in Weight: Approx.145g/5.1oz Application: 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 leaking detection, or stopping water flow from the pool when equipment repairs are made. . Package List: 2 x Expansion Plugs Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.