[Good Adhesive]- The back of the blank patch is strong sticky,Absolutely strong, you 't worry about Adhesive Hat Patches,just press the iron where you need to hold them in place, and the adhesive will be fixed after hot melting. [Wide Application]- these iron on patches for clothing have a wide range of applications, you can stick them on clothes, shirts, hats, dresses, sweaters, shorts, jackets,backpacks, baseball,uniforms, jeans, shoes and so on.and you can also use these blank leather patches for hats to mend your worn-out clothing, hats, adding more colors and charm to your clothes. [High-Quality Material]- These hat patches are made of high-quality PU, which is durable, waterproof, and not easy to fade;easy to clean, not easy to wear, fade, fracture or deform,can be and applied for a long time. [Easy to Use]- the leather blank patches for embroidery bulk have hot glue on the back,After DIY your favorite pictures or copywriting, heat the hat patch at high temperature for about 20 seconds before and after,the adhesive leather patch can also be used without heating it with an iron and it directly to clothes and hats. Warm Tips: Please keep the temperature at about 150 degrees when heating, so that the fit will be better and it will not fall off easily. Colour:brown Material:PU Package Contents: 30 x Rectangle hat patches 25 x Round hat patches 25 x Irregular hat patches Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.