Switchblades and gravity knives provide a great variety of different OTF mechanisms. Switchblades or automatic knives ("springkniver") may not be acquired, possessed, or carried in Norway. Switchblades are specifically prohibited under Slovenian law. They approached a car at Jake Gaither Park armed with shotguns and switchblades. Most of these switchblades were side-opening designs, though some employed a telescoping blade. In Australia, switchblades are banned by the Customs (Prohibited Imports) Regulations as a Prohibited Import. The law requires that switchblades be cased and secured while being transported. Switchblades are mostly illegal to sell, buy, trade, carry and possess. Switchblades are legal for possession, sale, manufacture, and carrying. French law defines switchblades as dangerous weapons, which may not be carried on one's person. Customs clearance of switchblades may not be performed for private individuals such as tourists. Switchblades usually fall under that definition. The two draw their switchblades and get in a fight ("The Rumble"). Switchblades may not be possessed by individuals under 21 years of age.