[Effective Protection] The swimming pool winter hat can protect your swimming pool from the strict in winter. A simple solution prevents your pool from being seriously damaged. [Easy to install] The pool kit is easy to install and use, in seconds. The scupper caps can be used to insert the scupper hole into the pool. [Maintenance materials] The pool cover is made of stainless steel bolts and strength rubber. The metal parts are made of stainless steel to prevent rust and rubber materials to ensure a firmer setting. [Multi-user] The pool cover is used as a tube cover, oil and return to pipeline and detergent. During equipment maintenance, in the pool. [100% Satisfaction Guarantee] If you have any questions or help in the upper pipeline, please write e- mails, we will reply to you within 24 hours. We provide friendly services. Specification: Material: stainless steel and rubber Size: about 1.25-1.5 zoll / 32-38 mm Weight: about 200 grams Package list: antifrozen hat * 2 feature: 1. Use it as a tube cover, insert a rebound device, feedback and cleanliness to prevent water from entering in winter. 2. Use gel caps to protect the pool from suffering in harsh winter. A simple solution prevents your pool from being seriously damaged. 3. Made of high quality rubber with the maximum scalability, which can ensure waterproof sealing and corrosion resistance. 4. As a pressure tank pressure test or other leak detection methods, or stop the pool water flow during equipment maintenance. 5. Construction to meet or exceed standard specifications, strictly follow factory quality control, compact size and easy to carry. 6. If the invoice is used, just put the winter nozzle or broom allocation sheet. Notes: 1. Due to manual measurement, allow 1-3mm measurement