[THE MOST EFFECTIVE WAY TO STAY PROTECTED]: Our stickers for Sunscreen are the easiest and most effective way to make sure your skin stays protected from harmful rays, all day long. Each pack contains 120 stickers, providing an ample supply for long term use. [HOW IT WORKS]: Flower stickers will darken to based on the exposure. Apply your sun cream as normal to both your skin and patch. The patch will turn clear, as the sunscreen it from rays. The patch will darken as the sunscreen wears off. Once the patch becomes , it's time to reapply sunscreen! [, EFFECTIVE, AND CHEMICAL ]: Created with you and your kids in mind. No chemicals or other worrisome ingredients! Stickers are made with adhesive. They have a UV-sensitive layer that reacts to and turns on exposure. to stay all day. [LASTS UP TO 12 HOURS]: Our stickers last up to 12 hours. The color change will cycle ALL day with each sunscreen reapplication. It means you can enjoy your time outside without having to constantly reapply sunscreen, you don't need to use another sticker each time you reapply. [ FOR THE WHOLE FAMILY]: for babies, toddlers, kids, and adults. Convenient, small package is for on the and travel. Easy to store in pockets, diaper bags, and first aid kits. Great for any outdoor activities including the beach, park, picnics, hiking and more. Have fun in the sun without the worry!