Waterproof Material: The repair patch is made of adhesive and PVC material, which is waterproof and durable, safe and stable, adheres firmly without falling off, is not easy to wear out, and can be used for a long time. Self-Adhesive Repair Patches: You only need to clean your inflatable product before using the patch and keep the surface dry, then tear off the product, stick it to the place to be repaired, and wait for the adhesion to be firm. Suitable Size: The repair patches can be easily cut into different shapes or sizes to meet your different needs, quickly and instantly repair tears or holes on various inflatable parts and ensure a perfect fit. Wide Range of Applications: Very suitable for pool air cushions, swimming rings, air mattresses, and other inflatable items. Quantity Dimensions: 40 pool repair kits included. 20 rectangles, 25 cm long and 10 cm wide. 20 round pieces, 7.5 cm in diameter.