The Ben Stoeger's Boss Hanger was designed and invented by USPSA Grand Master Ben Stoeger. This BOSS Hanger is designed to allow full adjustment for competition rigs being worn on speed/race belts. This is our number 1 selling attachment for USPSA users and is an excellent choice for users who need the ultimate custom choices. This accessory can only be used on LS Holsters that are made to accept the Ben Stoeger Boss Hanger. Currently this will only work with the Huron Holster Series.