Material: Cloth, the back of these patches have glue, can be ironed on or sewn on. Size: Assorted Size (Please refer to the picture.) Easy to Use: Heat sealable glue backing gives you the ability to sew or iron on all kinds of fabrics; And the patches can also be removed easily, you can transfer and reuse the patches. Repairing and decorating: The patch iron-on kit can extend the life of your favorite clothes. Never worry about the defect or the ugly hole on your clothes any more if you have these lovely cotton patches. Make them look cool and fashionable. Environmental protection material: no harm to our skin and eco-friendly. It can help you catch the trend, never behind the fashion. Widely Used: Great for sewing or ironing DIY jackets, jeans, bags, pants, t-shirts, skirts. Colorful colors, unique planetary pattern, adults and children will love it. Number of pieces delivered: 1 set (20 pieces)