Recommended Age: 18+ Recommended Age: 14+y Electric: Lithium Battery Certification: CE CE: Certificate Certificate Number: 230317013 Block Size: Small Building Block（Compatible with Lego） Barcode: Not Included Gender: Unisex Model Number: 22027 Warning: Do Not Ingest Material: Plastic Plastic Block Shape: Self-Locking Bricks Plastic Type: ABS Type: Others 22027: 1741pcs Theme: Technical Shipping: Free Shipping to Select Countries Characteristic 1: Ideal for Christmas, New Year, Birthday, and Halloween Gifts Characteristic 2: Perfect for Children's Toys, Toys for Boys, and Toys for Girls Characteristic 3: Great for DIY, Educational, and Enlightening Play Feature 1: Includes Blocks, Building Blocks Set, and Brick Series: MOC Aquarium