Zero9 Taser Cartridge Case Holster Taser 7 Cartridge Tek-Lok Plain Black. Have A Spare Cartridge That You Want To Keep Handy? This Case Will Keep 1 Spare Taser 7 Cartridge Ready To Go And Can Mount In Several Different Ways. Secure And Protective This Cartridge Case Will Carry The Spare Cartridge Blocks The Path Of The Probes In The Event Of An Accidental Discharge And Can Be Retrieved Quickly For A Reload. Specifications for Zero9 Holsters Zero9 Taser Cartridge Case / Taser 7 Cartridge / Black / Tek-lok: Manufacturer: Zero9 Holsters Color: Plain Black Package Contents: Zero9 Holsters Zero9 Taser Cartridge Case / Taser 7 Cartridge / Black / Tek-lok