Abstract: Provided is an RFID tag. When no external pressure is applied to a packaging structure, a wire for transmitting power and data from an antenna is separated from an RFID chip by an air layer. When external pressure is applied to the packaging structure, the wire is connected to the RFID chip to transmit the power and data between the antenna and the RFID chip.

Abstract: A motorcycle sidecar is provided which includes a wheel positioned a given distance from wheels of a motorcycle, a wheel supporting assembly supporting the wheel in a manner that enables the wheel to be rotated, and absorbing road shocks, a stabilizer assembly connecting the wheel supporting assembly to a body of the motorcycle to enable the wheel supporting assembly to be leaned when the motorcycle is leaned, and a main body installed on the stabilizer assembly, for transporting a passenger or a thing. When the motorcycle is leaned to the right or left during driving, the wheel is leaned to the right or left at the same angle with the ground as the motorcycle. Thus, the motorcycle can be safely driven without reducing the speed to the considerable degree, when it goes around a curve.