What’s Included: 16 Glow in the Dark shapes including Squares (4 Small), and Triangles (4 Equilateral, 4 Right, 4 Isosceles), 1 LED Keychain Light What Makes It Unique: Features magnetic construction pieces that glow in the dark. Works with direct sunlight or supercharge pieces with the included LED light key chain. Reusable packaging includes space-themed stencils for fun activities at home. Developmental: Glow puts STEAM learning at the forefront and is a popular choice for science-based activities, fun experiments and lesson plans. Great for Gifting: Makes a great <$30 gift for little scientists ages 3+. More to Explore: For tiles that sparkle and shine, check out the MAGNA-TILES Stardust 15-Piece set. Always Compatible: All pieces are compatible with and complementary to all other MAGNA-TILES sets. Safety Guaranteed: All MAGNA-TILES pieces are built to withstand countless hours of playtime. Our signature lattice prevents cracking, while fastening rivets keep magnets safe and secure. Superior Quality: MAGNA-TILES pieces are made from food-grade, non-toxic MABS plastic that’s free from BPAs, phthalates, and latex. Our magnets are selected with kids in mind, letting them easily pull apart tiles for safe, frustration-free building. Made With Purpose: MAGNA-TILES sets are loved by builders ages 3-99 and designed for kids to enjoy, without instructions or adult assistance. We're advocates for Meaningful Play, that is: Fun, Engaging, Experience Based, Child Led and Developmental.