Check the listing for details. Bianchi 7900 Covered Cuff Case - Plain Black, Hidden 23820 Handcuff : 1017774. Condition: New. Listed at 44.39 USD. Bianchi 7900 Covered Cuff Case - Plain Black, Hidden 23820. Features of Bianchi 7900 Covered Cuff Case - Plain Black, Hidden 23820 Bianchi AccuMold Elite Duty Accessories Bianchi's done it again! Using Bianchi patented AccuMold technology, we've developed a new line of synthetic duty gear that leaves the competition in the dust!