This unit is a 3.0 oz. can made by DEFENSE TECHNOLOGY. The can is 6.25" tall and incorporates the flip top safety. First Defenser X2 has all the industry-leading attributes of the original First Defenser but with twice the capsaicin concentration for extra pungency. It also uses an environmentally safe propellant, nitrogenon to project a stream 12 feet. Features include: 20% OC Capsaicinoids; Stream delivery system; Nitrogen propellant formulation; 10-12 one-second bursts; 10-12 feet effective range. NOTE: Pepper spray over 2.5 oz. may only be sold to law enforcment officers. Defensive spray cannot be shipped outside continental US. Cannot ship to Hawaii, Michigan, New York or Wisconsin. It must be shipped to a physical address, and not a PO box. Ground shipment only.