The monster mash sticker/stencils come in a pack of 10. They come in a variety of sizes. To use them as a sticker apply them to dry polish firmly, and then topcoat the nail. It is extremely important they are firmly attached to the nail before top coating. To use them as stencils to dry polish, and then paint over the stencil. Peel the stencil off straight away. Once the polish is dry topcoat the nail.
They are made from vinyl.