The Crystal Growing Box Kit from Toysmith is a popular DIY science craft. Each box kit includes everything kids need to grow their own crystal. Includes crystal formula, 1 base rock, 1 growing tray, 1 magnifying glass, 1 spatula, and how-to-grow instructions. Available in 6 vibrant colors and crystal styles. Options include Sapphire Blue, Rose Pink, Jade Green, Topaz Yellow, Amethyst Purple, and White Diamond. One crystal growing kit per box. Get an assortment of 6 with a 14 x 8.4-inch display case.