GROIC Marble Run Building Blocks, 330 PCS Classic Big Blocks STEM Toy Bricks Set Kids Race Track Compatible with Bulk Bricks Set for Boys Girls Toddler

Easy to assemble and take apart various amazing marble tracks with complete accessories and guidance manual, enjoy the marbles rolling up and down through the track quickly.

Package Includes: 330 Pcs
Small Particle: Smooth, round, compatible with all major brands building blocks.
Safe Material: High-quality ABS materials, take care of your child's growth.
Multiple Colors: Colors collide to inspire your children's color aesthetic cognition.
Comfortable Fit: More suitable for children's small hands and strength.
Endless Fun: Kids start out building simple designs, and it gets more challenging as they progress.Enjoy family time and accompany children's growth.

Attention: Caution for small components, NOT for children under 3 years of age.
Danger of swallowing or choking. Ages 3+ under supervision.

• 【Non-Toxic STEM Educational Toys】Building bricks toy blocks assured that all are made with the thick ABS material, smooth edges avoid scratching hands, non-toxic, which are safe and reliable for your kids with our marble run building blocks set.
• 【Intellectual and Creative Development】This classic big blocks STEM toy inspire creativity and curiosity, enhance the kid's imagination, shape recognition, spacial three-dimensional thinking ability, problem solving ability, and more.
• 【330 Piece Big Building Block Set】Box of 330 large building bricks toy blocks in beautiful box. The building blocks are composed of different colors. The color of the building block is random distribution, different from the picture.
• 【Challenge, Amuse and Interaction】It is an interactive game that adult and child to participate in together, have hours of fun with parents or friends! The process of building these block together can enhance the relationship.
• 【Ideal Educational Toy Gift】Marble run building set for kids both boys and girls. It is suggested that children under 6 years old should be accompanied by adults to complete the track construction. Enjoy Building Various Tracks!