There are no rust or stains, and it is in a clean condition. Length: Approximately 30cm. ● Prevents camera shake and is used for long exposures and bulb photography. ● Screws into the camera's shutter button. Can be used with digital cameras if they have a screw hole for the shutter button. ● Has a locking screw on the push-in part, used for bulb photography, etc., when you need to keep the shutter pressed for a long time.