sticky back for fabrics use for sleeves

Sticky Back for Fabrics is an easy to apply peel and stick fastener that provides a permanent bond to fabrics with no sewing, gluing or ironing required. Fabric bond withstands laundering. Our durable VELCOR Brand closures can be reused hundreds of times. Key uses: quick fixes for hems, shoulder pads, collars, sleeves, wardrobe gaps, costumes, personalizing fabrics with embellishments, accessorizing and attaching patches. Designed for use with cottons, polyester, poly blends, and nylon. VELCOR Brand Sticky Back fasteners are available in a variety of colors, sizes, and shapes.

You can know the function via https://youtu.be/aT1wD3eHIU4

 https://youtu.be/lLelwN7Zg2s