Optimal visual support Inspection mirror with magnification to be used for properly positioning your windshield repair tooling and monitoring the windshield repair process from outside of a car, bus or truck. The inspection mirror needs to mounted on the inside of the windshield with a suction cup. This is giving you the perfect and important visibility on the damaged area on the windshield. With this inspection mirror, Duobond offers exactly the tool which enlarges the spot perfectly up till 5x. So now every technician has the optimal support to deliver a quality repair.