4WD 1-Layer Smart Car Chassis with Speed Encoder for Arduino

Feature- 100% Brand New-  Mechanical structure is simple, very easy to install.- The car comes with tachometer encoder. Specification-  Size:25 x 15 cm- carrying capacity:About 1Kg-  four-wheel drive-  chassis:organic glass-  current:80-100mA-  5V rotate speed:200/min-  5V speed:40m/min Package include Acrylic car board 1 car tires 4 motor 4 the motor fasteners 4 machine screw nut