Thank you for viewing. This is a dedicated arm that came with the Sanki refill-as-is system. It seems it can be used by hanging it on the shower, but since my shower has a different specification, I am selling it. It is new and unused. Although it is new and unused, We are waiting for purchases from those who understand home storage, amateur inspections, and used items. Please refrain from purchasing if you are nervous about this. Thank you. #Sanki #sanki #RefillAsIs #DedicatedArm #Shower #Hanging