Swimming Pool Vinyl Rx Repair Self Adhesive Patchs, kit includes (1) smoothing tool and (5) 3"x7" clear peel and stick patches. Make sure area that needs repair is clean. Cut patch 1 inch larger then hole that needs to be repaired. Make sure you round the corners of the patch. Remove backing from patch and press firmly against vinyl. Remove any air bubbles or water trapped with the smoothing tool pushing towards the sides and wait 30 minutes. Good for small repairs, Self adhesive patch, no need for glue, No need to empty pool, works underwater.