Goobi 300 Piece Construction Set with Instruction Booklet | STEM Learning | Assorted Rainbow Colors SET INCLUDES: 300 pieces and storage box - 140 bars (2.36), 90 balls, 70 tripods (90 interlocking pieces) and a 32 page illustrated instruction booklet. Bars and tripods come in vibrant rainbow colors. EDUCATIONAL & SUPERIOR QUALITY: We specialize in creating educational toys that encourage creativity, fine motor skills, interaction, playful experimentation, and which also serve as a valuable kit for a STEM learning curriculum. Goobi products are made using the best material on the market such as ABS plastic. The bars (rods) and balls form incredibly strong connections making it possible to build large scale structures that are sure to fascinate the whole family. AWARDS: Creative Child Magazine Top Toy of the Year | Seal of Excellence | Creative Play of the Year | Preferred Choice Award SAFETY: Made with 100% safe material and has passed all required testing by Consumer Product Safety Commission accepted third party laboratories. Complies with ASTM (USA) and EN71 (EU) toy safety standards | Certified non-toxic and BPA free | Ages 3 and up SATISFACTION MONEY-BACK GUARANTEE: Goobi products are backed by a 100% guarantee that you are truly satisfied with your product or receive a full refund. No questions asked.