The swimming ring patch is self-adhesive, it would be pasted after tearing off the release paper, we will no longer need to use glue. This repair patch for air mattress is waterproof and water-resistant. It can be pasted in a humid environment and can be used in water after pasting. Features - Color: Transparent. - Material: TPU. - Size: About 7X7X0.5cm/2.75X2.75X0.2inch. - These repair patches with strong adhesive, transparent and durable. - No harm and no odd smell, good material can ensure you long time usage. - Very convenient to operate, provide fast, instant repairs to rips, tears or holes on various products. - Due to the self-adhesive back, all you have to do just cut it into shape what you want, then apply to the area that needs to be repaired. - you can easily these repair patches into various shapes or sizes to meet your different needs, a necessary and practical accessory in your life. Package list: 5 x patch