This is a Bianchi Handcuff Case known as the 7334, model 22964.
The Model 7334 AccuMold(R) Open Handcuff Case features a pull through style for easy access to the cuffs. Made of AccuMold(R) trilaminate construction with ballistic weave exterior and Coptex(TM) lining. A dual web belt loop design conveniently accommodates both 2 in. (50 mm) and 2.25 in. (58 mm) belts widths.
Features:
Nylon construction
Holds one pair of chain or hinged handcuffs