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• 150 Pcs premium marble run set with transparent parts, endless fun for your child to watch marbles run along tracks
• Premium quality set! Package includes 100 pieces variety color action parts which are made of high quality solid transparent ABS and 50 regular size glass marbles
• All tracks are easy to stick together and the set is stable once build up with our professional designed molds
• This STEM marble run set comes with an assembly instruction to help kids’ hand-eye coordination. After they learned, they will have ability to build any different tracks by their imagination and logical mind. Perfect Toy Set to develop kids’ creativity, logical thinking, hand-eye coordination. Play and Gain patient and problem-solving ability. Excellent Gifts for all kids
• CHILD SAFETY: Meet US Safety Standard, Safety Test Approved, 100% Non-Toxic