For safety training, function testing or safely decocking without damaging the firing pin, A-Zoom training rounds are much more than conventional snap-caps. They are precision CNC machined from solid aluminum to precise cartridge dimensions, then hard anodized for ultra-smooth functioning and long life.Features:Solid AluminumHard AnodizedSmooth FunctioningPrecise Cartridge DimensionsSpecifications:Manufacturer Part #: 12213Caliber: 20 GaugeType: Snap CapsColor: RedUnits per Box: 2/PackSubcategory: Training EquipmentMaterial: Aluminum