KST X20-8.4-50 45KG 180° Metal Gear Coreless Digital Servo For RC Helicopter Airplane Robot Boat lets you zip along walls

lets you zip along walls and ceilings at full throttle

S-3 automatic mode (Automatic)

Creative wooden car puzzle for developing kids

Made of superior metallic material

KST X20-8.4-50 45KG 180° Metal Gear Coreless Digital Servo For RC Helicopter Airplane Robot Boat lets you zip along wallsDescription: Brand: KST Item: X20 8. 4 50 Digital Servo Working Voltage: DC 6. 0 8. 4V Rated Voltage: DC 7. 4V Speed: 0. 20sec 60 @6. 0V 0. 17sec 60 @7. 4V 0. 15sec 60 @8. 4V Torque: 45Kg. cm@8. 4V 42Kg. cm@7. 4V 38Kg. cm@6. 0V Motor: Coreless Pulse: 900 2100us Dimension: 40. 5*21*42mm Application: for RC Helicopter, Airplane, Robot Package include: 1 x KST X20 8. 4 50 Digital Servo