The Multi Chassis Tank Rescue Platform is specially designed for rugged terrains. It equipped with two independently controlled articulated arms. The arms can help it to server in all kinds of terrains, include flat mattess, ground, smooth ceramic tile, lawn and so on.The robot can easily across the low barrier, automatically adjust the angle of assistant-track to pass the way. To rise up and down the assistant-track, the robot can pass stairs easily and smoothly. More details about the features of the Multi Chassis Tank Rescue Platform you can find in the video. FeaturesServe in all kinds of rugged terrainsIndependently controlled articulated arms SpecificationSize: 262*222*60mm( length*width*height )Wheel diameter:Φ52mmTrack wheel :8pcsDG01D 48:1 DC Motor: 2pcs (Metal output shaft)NET Weight:800g DocuemntsMulti Chassis Tank (Rescue Platform) Instruction manual3D Model pictures