UV Stickers for Sunscreen Size:15mm,12 pcs per sheet,total 10 sheets. Easy to Use: The sticker is white before being exposed to the sun, but it will turn purple when exposed to the sun Multi- use:The Stickers can be pasted on clothes, arms, or cups, and can be used outdoors to experience the color change of stickers in the sun, for games, Sunscreen, and many other purposes. Easy to peel and apply,UV Stickers can be stick on most surface Colour:Purple Material:PET Package Contents: 1 x UV Stickers Kits for Sunscreen (10sheets, 12pcs/sheet) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.