Package Included: 10 x Plastic Connector Pins and 10 x Swimming Pool Spare Parts Gasket. The seal prevents water from entering the frame tubes and causing internal rust, helping to extend the life of your pool. Reliable Material: These pool connector pins and sealing caps are made of high-quality, durable ABS material, designed to withstand regular use and resist breakage, ensuring long-lasting performance. Easy to Install: Simply remove the damaged connecting pins and replace with the new parts in your 4m metal frame pool. No additional tools required for installation. Practical Design: The long spindle connects the T-joint to the round pool tube, while the seal helps prevent water ingress into the frame tube, reducing the risk of internal corrosion. Designed to integrate seamlessly with compatible metal frame above ground pools. Wide Application: Suitable for most above ground pools with rectangular or round metal frames. Ideal for quick and easy maintenance to help keep your pool functional during the swimming season.