Thank you for viewing. I've used these crayons a few times, and as you can see in the 3rd and 4th photos, they are mostly in good condition except for yellow, red, and orange. These crayons are made of rice wax and can be easily washed off with water. However, they may become difficult to remove depending on the material and the time elapsed, so it's recommended to test them out first. These are recommended for those who want to try them out easily! - Brand: kitpas - Number of colors: 12 - Features: Easily washable with water - Material: Rice wax