This is the GK-3B, a dedicated pickup for Roland guitar/bass synthesizers. Please note that this is for bass, so be careful not to make a mistake. All accessories, such as spacers, are included and unused. - Model: GK-3B - Brand: Roland - Included Accessories: Pickup, cables, manual, mounting brackets, adhesive strips - Functionality: Divided pickup for guitar - Manual Language: Japanese The GR-55 unit itself is also listed separately, so please take a look.