JOYIN Marble Run Premium Set（196 Pcs）, Construction Building Blocks Toys, STEM Educational Toy, Building Block Toy(156 Translucent Plastic Pieces+ 40 Glass Marbles)

196 Pcs compact marble run set with transparent parts, endless fun for your child to watch marbles run along tracks Valuable toy set includes 156 pieces variety color action parts and 40 small 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