Stable metal double bass pin rest, STA-SET model - Model name: STA-SET PINREST - Manufacturer: ROCKFORDILL This item is used by attaching it to the pointed endpin of a double bass. I am selling it because I no longer use it. It was very helpful because it prevented scratches on the floor. It is usable, but please consider it as a used item. If you have any concerns, please comment before purchasing. I will respond as soon as I confirm your comment.