This open-ended, designer construction set unleashes creativity while also serving as a mindfulness tool perfect for ages 5-99. Assemble the pieces in countless ways to create your own geometric modern art piece or imaginative structure. The Yellow Edition beams positivity. It inspires optimism, curiosity, and warm-hearted creativity. 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. 50 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%