99% thread + 1% glue Used to creatively patch a favorite shirt, jeans, hats, blouses, pants, skirts, etc. Make your backpack or tote unique Material: Silk Thread + Cotton + Polyester; Patches size pls follow the picture.Due to the handmade sewing,size may vary one to another approx 0.3~0.5cm Package includes: 4 Pcs DIY embroidered flower patches For special items meant to last for a very long time, such as quilts, ironing on the patch and then reinforcing with a few stitches is an effective way to ensure permanent placement. Appliqués can even be added to paper using glue, or sewn onto certain materials, so this decorating concept is not limited to the iron-on technique This product will come with a true lifetime warranty that is good for one free replacement