Robotime - Alchemy City, Mechanical Marble Run, w/Automatic Ascent Set RC4ZRTR0027 Other helpful items needed: Body

Other helpful items needed: Body Scissors

FLX18-3S25-WP-C Flux ESC with XT-30 - High Spec Competition Crawler ESC with Drag Brake adjustment via transmitter

Tapered hole shock pistons alter the damping on contraction and extension for precise response to vibration

as well as biasing the weight forward

ABEC 3 Rubber Sealed Ball Bearings: The "ABEC 3" rubber sealed ball bearings ensure smooth and efficient operation

Robotime - Alchemy City, Mechanical Marble Run, w/Automatic Ascent Set RC4ZRTR0027 Other helpful items needed: BodyBuild a glowing mechanical city where marbles race through shimmering towers and mirrored bridges. Gears turn, lifts rise, and lights react to every sound, transforming each run into a hypnotic show of motion and color. With its futuristic design and seamless gear system, Alchemy City is both a challenge to build and a spectacle to behold a kinetic skyline powered by your own hands. Features: Sound Reactive LEDs: Seven light boxes and 120+ patterns