Features: High-quality materials: The sticker is made of nanos glue material and PET film, which is skin-friendly and non-allergenic. UV reminder: The patch is a patch that facilitates real-time detection of UV intensitys. It changes color depending on the intensitys of UV rays. The more purple the color, the strongers the UV intensitys. It reminds you that it's time to apply sunscreen. Sweat-proof and waterproof: This UV protection patch is waterproof and breathable, suitable for sensitive skin and children. Using this sticker, you can reapply sunscreen in time when outdoors. WIDE APPLICATION: Perfect for backyard camping, playing at the beach, working, or playing outdoor sports, these stickers will help you protecting yourself from sun damage. Great Gift: These stickers are perfect for your mother, relatives, friends, girlfriends or anyone who care about skin health, a great birthday or Christmas gift. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Product ingredients: nanos glue, soy ink, PET film, water transfer paper Specifications: 24pcs/package Size: 6*8.5cm/sheet Package List: 24pcs x UV Detection Sticker