Oil-free. This is a shaker keychain with a blue sky image ✨ ☆ I try to work carefully, but there may be air bubbles, overflows, unevenness, and small dust particles. I would appreciate your understanding of handmade products and your consideration of purchase ( .ˬ.)" ☆ The color of the product may differ slightly depending on the type and environment of your monitor. Please understand. ☆ Immediate purchase is welcome ✨ ☆ Shipping will be via Rakuraku Mercari. ☆ Even if there is an ongoing exchange of comments, the person who purchases the item will take priority.