220PCS Rockwoo 101/102 DIY Assembled 3 In 1 Hydraulic Robot Arm Steam Science Leaning Children Toys

Description Brand RockwooItem Name Assembled 3in1 Hydraulic Robot ArmWeight 1 25kgColor Yellow BlueSize As pictureHydraulic Grad 48mmWrist Rotation 180°Wrist Mobilty 90°Elbow Motion 40°Shoulder Motion 45°Base Rotation 270°Explore the Magic and Fun of Hydraulic PowerYou don t need a battery you don t need a motor just water can drive your mechanical arm The pressure of water is converted into power So that the operating lever can easily control various joint activities of the mechanical arm Interesting fact Modern machinery uses hydraulicpower to help accomplish various tasks The mechanical arm is constructed by 220 components which trains children s logical ability and practical ability and explores scientific principles The mechanical arm has three functional modes clamp suction cup and hydraulic grab Give full play to your imagination and feel the fun brought by the hydraulic mechanical arm Do it Little scientist Package Included 1x DIY Assembled 3in1 Hydraulic Robot Arm