What You Get: 15pcs iron on repair patches Meterial: front side of the patches is 100% cotton, back side is covered with the strongest hot-melt adhesive film. Size of Iron-on Patches: 4-1/4\" by 3\" (7.5 cm x 10.5 cm) will help to hide the shortcomings of both small and large holes and enough to create your own design. How to Apply: It will take only a few minutes to repair or decorate your jeans, as only an iron is required. Preheat your iron to the max level, then place the patch on the desired spot and iron over the patch with pressure for 60 seconds. Wide Application: you can use these patches to decorate your clothes, suitable to be applied to cover or reinforce your clothes, Iron on patches for clothing repair can not only be applied on jeans, but also t-shirts,hats,shoes,socks,clothing and so on.