Hornady lock-n-load bullet tubes can fit 40 plus bullets depending on caliber and weight and feature a milled window for visual bullet level inspection.Lock-n-load bullet tubes are sold in packs of 3 tubes per caliber.Lock-n-load bullet tube feed bullets into existing hornady bullet feeder dies.They eliminate the need for a bullet feeder hopper.The milled window in tube shows when it is almost empty and are suitable for any progressive press with 7/8-14 thread die-stations.Capacity: 40 9mm BulletsType: Bullet FeederCaliber: 9mmQuantity: 3 PackFunction: Feed BulletsCompatible With: Hornady Lock-N-Load Case Feeder