White color Product size: refer to the picture Protect the pipes: the anti-freeze plug can block the return pipe, prevent rainwater from entering the ice and causing the pipe to break, and protecting the swimming pool from damage. With rubber ring: to ensure waterproof performance, 5 winter plugs can meet different needs, suitable for hot tub accessories, swimming pool accessories, SPA accessories. Easy to install and use: directly plug into the oil return port, no fixing No additional auxiliary is required and it can be easily used within minutes. High quality materials: The expansion plugs are made of plastic according to standard specifications and are expandable to ensure a perfect seal and prevent leakage. Wide range of applications: suitable for garden swimming pools, swimming pools, etc. Skimmer plugs can be used as pipe plugs to plug skimmers, oil return lines and detergent lines.