SUMXTECH Marble Run Building Blocks,157pcs Animals Marble Race Track, Big Blocks Compatible Marble Maze STEM Educational Toddler Toys with Multiple Models Gift Boys Girls Kids Age 3,4,5,6,7,8+

About this item Make sure this fits your model number. Multiple Models--The freshness never fades as it comes with 157pcs, and 4 one-inch balls. 10+ models from simple to complex. Kids up to 3 can start with simple models and increase difficulty with their growing until 12 ages old. All models can be easily installed according to the step-by-step instructions. Stick big blocks--Stick bricks can easily fit tightly and build a stable marble run. Made of high-quality ABS plastic thus it is kind for toddlers. Big blocks make it easier to grasp for kids 3-5, which is designed for younger kids to play in a safe & fun way. Ideal Gifts for kids--Easy to attach kids' attention as it’s not like traditional marble run that it adds 6 animals, waterproof sticker makes them more vivid & easy to clean. Compatible with All major bands' big building blocks( lego duplo blocks etc,.) in the market. Educational STEM toys--It’s the ideal building toy for boys and girls to inspire creativity and curiosity at age 3, and unleash their imaginations, logical thinking at age 4-8. Help develop problem-solving skills and three-dimensional thinking ability when kids 8-12. SUMXTECH Service--Machine packaging ensures accuracy. If received a package with an opening or damage, please contact us to solve the issue.