I accidentally bought the wrong size. It's new and unopened. This size can be used for repairs and projects involving drive recorders, cameras, and precision instruments. Please refer to the second photo for the size. It's a waste, so I'm listing it here hoping someone who needs it will use it. Since it's new, I don't think there are any particular problems, but please understand that it's sold as-is (no returns, no refunds, no claims). Shipping was quite expensive, so I've added that to the price, but I've lowered the price of the item itself. Thank you for your understanding. Please understand that it's sold as-is (no returns, no refunds, no claims). Thank you for your consideration. #Monotaro #PrecisionScrews #CameraRepair #DriveRecorderRepair #Camera #DriveRecorder #NewUnopened