Professional Installation Required: Installation and disassembly by professional maintenance personnel is recommended. Applicable: Our lens aperture cable is applicable for RICOH GR1 GR1S GR1V GR21 cameras which is a perfect choice for your camera repair. Premium FPC: The lens image stabilization cable is made of premium FPC material, though it is a third party product, it fits perfectly. 100 Percents Tested: The lens aperture shutter flex cables are 100 percents tested and qualified before leaving the factory. Accurate Size and Shape: The camera aperture cable has accurate design of shape and size, and proper installation for normal operation.