The Hoppes Phosphor Bronze Brush is specifically designed for 12 gauge shotgun cleaning featuring durable phosphor bronze bristles that effectively remove fouling and lead deposits.Hoppes Phosphor Bronze Cleaning Brush for 12 Gauge ShotgunsStout bristles for efficient cleaning and scrubbingEffective on lead deposits and powder foulingPhosphor bronze construction for durabilityBlister card packaging for easy storageTrusted by hunters shooters and soldiers worldwide this cleaning brush delivers the reliable performance needed to maintain your 12 gauge shotgun in peak condition for years of dependable service.