Our numbering boxes is one of the printing machine spare parts. It has three types: Rotary Numbering boxes, Plunger Numbering boxes, Others Numbering boxes. Types: Rotary Numbering boxes, Plunger Numbering boxes, Others Numbering boxes Digits：7,8,9 Digit sinkable：0，3 Feature: 1.horizontal/vertical  2.Progressive/ Regressive  3.3/16"Gothic /Roman/Etc.  4.Notch of Adapter: standard (22mm) wild (27mm)  5.Arm with spring or not Circumference: 153mm(18.9"),171mm(21.1"),180mm(22.3"),210mm(26.0"),etc Packing : 1PCS / box