Material: Plastic Features: wireless remote control Ability training: manual brain, grasping, intellectual development, parent-child communication, interactive toys Remote control mode: handle Suitable for children aged 7-10 Feature: 2.4GHz radio control,strong frequency signal,high sensitive operation,longer control distance anti-interference ability. 2 Channel, strong ability and power to really dig with its metal shovel and works exactly like areal excavator. Ability training: manual brain, grasping, intellectual development, parent-child communication, interactive toys Digger arm can move up and down. Premium plastic.A good toy companion for children.