Feature:1. 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.2. Used as pipe plugs, to plug skimmers, returns and er lines to prevent water from entering the pipes during winter.3. Expansion plugs have other uses too, such as pressure testing pool lines or other methods of detection, or stopping water flowing from the pool when equipment repairs are made.4. Made of high‑quality rubber, it has maximum expandability and can make sure a tight sealing.5. Built to meet or exceed standard specification, strictly follow factory quality control.Specification:Condition: 100% Brand NewItem Type: Expansion PlugsMaterial: Rubber Color: As shown in the pictureSize: Approx.51mm/2inWeight: Approx.190g/6.7ozApplication: Used as pipe plugs, to plug skimmers, returns and er 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 detection, or stopping water flowing from the pool when equipment repairs are made. Package List:2 x Expansion PlugsNote:1. Please allow 1‑2cm 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.