Very strong, transparent, 50 pieces. Size: 5.5 x 6.5 cm. You can cut them according to your needs. Easy to use: cut the appropriate piece, remove the protective layer, press the patch onto the area to be treated. Let it dry for about 60 minutes before putting it back into service. Repairs cracks and damage to water balls, swimming pools, pools or inflatable toys, air mattresses etc. 50 Pack Repair Patches for Swimming Pools, Mattresses, Floats, Inflatable Toys, Canoes etc. How to use: 1. Locate the defective area on the item, or empty the water from the pool/pool. 2. Clean and dry the area and remove all dirt and thas(grease). 3.Cut the patch to the correct size. 4.Carefully remove the film from the backing. 5.Apply the entire surface without bubbles or wrinkles to the defective area, working carefully. 6.Apply strong pressure. 7.Let it dry for approximately 60 minutes before putting it back into service. Warning: Not suitable for children under 14 years.HAS Use under adult