Synthetic Leather Repair Patches Synthetic Leather Scraps Fabric Scraps Mask Interlining Set of 4 Made of black material, and described as slightly thick at 0.6mm, I used these for repairing sofas. They are stickers, so they are easy to apply. You can cut along the lines on the back. - Color: Black - Material: Synthetic Leather Thank you for viewing. Synthetic Leather Repair Patches Approx. 20 x 27.5cm, approx. 0.6mm thick Synthetic Leather Scraps Approx. 46.5 x 61cm Thin Fabric Scraps Approx. 71 x 51cm Mask Interlining Approx. 36 x 48cm