Precision is everything when out in the field, and you are ready to take down your final game. RCBS has several quality attachments, for those active outdoorsman, to help you accurately clean every time. Nylon bristles No-roll handle design Sizes: Small: .22 to .25 caliber Medium: .270 to .30 Caliber Large: .35 to .45 Caliber Cleans dirt and powder residue from inside necks Simultaneously lubricates for expansion