This 410-bore self-defense ammunition features a 2.5-inch shell with a combination of buckshot and BB pellets. It includes 15 projectiles per round, optimizing stopping power in close-range situations. Designed for effective self-defense, each box contains 25 rounds with plastic wad material and 0.47-inch brass casings. Product Specifications Caliber : 12-Gauge Shell Length : 2 1/2" Shot Size : 000 Shot Weight : 15 BB Quantity : 25-Shells per box