Keep your kiddos entertained for hours with Blocks: My First All-in-One Box-of-Fun. Imagination is sure to run wild with these colorful building blocks.

Material: Made of ABS plastic, food grade odorless material; smooth edge design without sharpness, no worry about hurting your kid's little hand.

Upgrade Marble Run: Cover 4 kinds of unique big fun track blocks+8 kinds of normal track blocks. It's an upgrade version of the 165 pieces set. 7 interesting models's instruction included.

Intellectual Development: Marble Run Building Blocks inspire creativity and curiosity, enhance imagination, shape recognition and spacial three-dimensional thinking ability. DIY and building your unique set.

Steady Assemble and Smooth: The blocks is smooth-hand feeling, self-locking bricks for assemblage and can stay together smoothly.

Funnel Slide bricks are the perfect building and rebuilding toy for creative play. These help build your child's creative and thinking skills.