Star team evo cartridges are manufactured with our own proprietary selection of components and exacting quality controls, making this top-level competition sports shooting cartridge the pinnacle of our research and development efforts.Through extensive testing, we have achieved a cartridge for sports shooting with excellent velocity, extremely reliable performance, and minimal recoil, and delivering excellent energies on target even at extreme distances.Rio is the leader in the manufacture of clay shooting cartridges throughout the world, endorsed by thousands of top competition shooters.Gauge: 12 GaugeLength: 2.75"Ounces: 1 1/8 ozShot Size: 8Rounds Per Box: 25Boxes Per Case: 10Hazair: YesAmmunition cannot be shipped to a P.O. Box, please use a physical address during checkout. For restricted state buyers (CT, IL, NJ), please email a copy of your state's credentials, and a photo ID along your order number to ffl@firearmsdepot.com within 5 business days to avoid cancellation and refunding your order. For California, Massachusetts and New York buyers, please have your dealer email us a copy of their FFL or Ammo Vendor License along with your order number to ffl@firearmsdepot.com within 5 business days to avoid cancellation and refunding your order. Your order will not ship without us receiving this information. Thank you for your cooperation