The storage case contains a wiper arm load gauge 00403-M, an angle measurement device 06091-A, an angle gauge and adapters for the 06091-A. The angle gauge enables the control of the angle measurement device for angles -15°, -7.5°, 0°, +7.5°, +15°. The storage case is delivered with spare batteries: one 9V. battery for the wiper arm load gauge; two 3V button batteries for the angle measurement device.