Intex Replacement Pool Parts - These 5.5cm plastic pool seal pins and rubber seals are designed for round metal frame pools 4.5m to 7.1m above ground with metal frame Round 28270-28272 Series Premium Plastic Material: Made of high quality ABS material, the rubber seal plastic pool joint pins are durable. Let your rectangular metal frame swimming pool be restored and put into operation at any time, but the price is only a small part of your cost Easy to install: Easy to install, no problem when installing. installing these 5.5cm plastic pool joint pins on a metal frame pool. Replace damaged or missing pins easily, no additional tools needed Specific Purpose: You will get 12 pieces of plastic joints and swimming pool spares, used for T-connecting joints. The long pins connect the T-joints to the round frame of your pool, the joints prevent water from entering the frame tube and causing it to rust