Kent's tungsten matrix rounds have 40% greater density than steel, and are a non-toxic alternative to lead that won't harm barrels and is safe in any choke.Uniform pellet size and consistent density allow for maximum on-target energy.Tungsten matrix waterfowl loads feature a patented blend of pure tungsten powder and polymer binding, designed to match the physical and ballistic properties of lead.Shot Material: TungstenGauge: 20 GaugeType: TungstenLength: 3"Ounces: 1 1/8 ozShot Size: 3Muzzle Velocity: 1360 fpsRounds Per Box: 10Boxes Per Case: 10Application: HuntingHazair: Yes