Shrinkies - Sweet TreatsEach set includes everything you need to make your own fabulous shrink art jewelry. Simply color the beautifully illustrated pre cut designs, pop them in the oven, and watch them magically shrink to 40% of their original size, right in front of your eyes! As your charms shrink, the colors become more intense. Suitable ages 5+ Follow these simple instructions for loads of fun: Color your Shrinkie using the pencils provided Pre heat oven to 165 (325)