- 3-speed transmission can be controlled via 4ch R/C transmitter

The links eliminate axle wrap and unwanted axle steer

Each beam's cross-section is a whopping 5/8 (15

8th Air Force

Compatible with 5mm output shafts

Robotime - ROKR Butterfly DIY Mechanical 3D Puzzle RGRA1300V2 - 3-speed transmission can beMysterious butterflies have experienced a magical mechanical evolution! Mechanized bodies means to face more difficulties and challenges. Nature is full of mysterious beauty. ROKR will turn its attention to the light and beautiful butterflies, bringing you a new mechanical species ROKR Mechanical Species Butterfly. The butterfly has two cool looks: MI05P and MI05B. One is a mysterious and elegant starry blue; the other is mostly rose pink, giving off