ARC-TEC® Create inspires children to think, build, and design like real architects, using nature as their blueprint. This open-ended, designer construction set unleashes creativity while also serving as a mindfulness tool. Assemble the pieces in countless ways to create your own modern geometric art piece or structure. Arc-Tec® Big Build Royal Black & White Two Tone is a celebration of imagination and intentional play. These soft muted tones have been carefully selected to work with each other. This edition features larger, chunkier pieces, perfect for smaller hands with big ideas. Each set includes product information inserts, including instructions on ARC-TEC® games. A sturdy building plate and soft cotton dust bag for thoughtful storage or gifting. 18 PCS. Made from Corn starch You can clean the pieces by placing them in a washing bag inside a dishwasher using a gentle cycle with mild soap, or by hand with a damp cloth and mild soap. Bioplastic 100%