PURPOSE: To enable outdoor side window glass to be safely wiped and cleaned by using a magnet fitted with a rubber or fabric product as a wiper for cleaning one side of the glass, and a ferromagnetic body or magnet fitted with a rubber or fabric product as a wiper for cleaning the other side of the glass.

CONSTITUTION: A glass wiper in the title has two wiper blades 2 integrally formed in such a way as projecting in different directions, comprising a magnet 3 covered with a rubber 2. A through hole 4 is formed in the magnet 3 for running a liquid cleanser and water in a lengthwise direction. Also, the hole 4 can be supplied with a liquid cleanser from a bag 6, and water from another bag 7 through a pipe 5 by the selective operation of a valve 8. The liquid cleanser and water are blown from many outlets 10 formed in a direction vertical to the hole 4. Two such glass wipers 2 are used, and so positioned as to oppose each other via window glass. The wipers 2 are adsorbed to each other due to the magnetic attraction force of the magnet 3. Then, one of the wipers 2 is moved, thereby wiping and cleaning both sides of the glass concurrently.