For Field shotgun with a straight stock ending; Will fit hunting shotguns (12 and 20 Ga.) and 20ga. sporting shotguns; Soft, light and able to slide during shouldering; Micro Core is an innovative recoil pad developed by Beretta; Does not fit on: Competition type stocks (13,6 cm), models with curved stock and the following shotguns: S55 - A301 - A302 - ASE90; Black Color