Build creative railway adventures with the MT5 3D Gear Track 145-Piece Building Block Set. The modular snap-fit system lets kids create horizontal, elevated, vertical, uphill, downhill, sideways, and upside-down track layouts. An advanced gear-rail drive keeps the rechargeable motorized train connected to the track as it moves through challenging 2D and 3D routes. The included remote controller gives kids interactive control, while track supports, suction cups for vertical mounting, traffic signs, decorative stickers, and accessories help create detailed railway scenes. Hands-on construction introduces gear transmission, gravity, balance, motion, and mechanical principles while helping develop spatial reasoning, creativity, problem-solving, and fine motor coordination. Designed for ages 6 and older, the set includes a USB Type-C charging cable and durable ABS plastic components for hours of screen-free STEM play. | Contixo | | MT5 3D Gear Track 145-Piece Building Block Railway with Remote Control Motorized Train, Ages 6+ | Blue and Orange | Best Buy