Klobroz Marble Run Building Blocks, 145 PCS Classic Big Blocks STEM Toy Bricks Set Kids Race Track Compatible with All Major Brands Bulk Bricks Set for Boys Girls Toddler Age 3,4,5,6,7,8+

【SAFE】Made of eco-friendly ABS, absolutely non toxic, Conform to ASTM F963 US Toy Safety Standards. Smooth edges avoid scratching hands. Compatible with other similar size blocks. 【EDUCATION】This toy blocks come with an easy assembly manual, color and shape recognition, hand-eye coordination, Creativity and Imagination, Motor Skills, Logical Thinking and Problem Solving Ability, Building and Design Ability are developed while playing. 【INTERACTIVE】It is great toy for adult and child to participate in together, have hours of fun with parents! Laugh, Build, And Create unforgettable moments of working On Projects together with your children. Get closer with them and let kids no longer indulge in electronic games. 【BEST GIFTS】Ideal Marble Run Gift for boys and girls. Best choice for children/kids birthday and Christmas gifts! 【QUALITY SERVICE】If you have any question regarding the products, please let us know. we'll be happy to assist you.