The Plus-Plus Learn To Build set contains everything you need to get started with this unique construction toy. A Guide Book gives step-by-step instructions to build flat mosaics and 3D creations - animals, people, buildings and more using Glow in the Dark pieces! Includes: 400 pieces including Black, Neon Orange, Neon Pink, Neon Green, Neon Yellow, and Glow in the Dark pieces 1 NEW Black Baseplate 1 Guide Book About Plus-Plus: Designed and made in Denmark. BPA-free and phthalate-free. Suggested for ages 5-12. Each piece measures .75" x .5" (20mm x 12mm). Each baseplate measures 4.5" x 4.5" (114mm x 114mm).