Spur gear, Bearing and washer set with 42 Teeth, For Pureten Alpha and Alpha2 models. P/N AG5
As the original item is no longer available these have been reprinted using a 3D printer, in a High quality, Temperature resistant ABS material. The slightly scuffed look to the underside happens as part of the printing support process and is purely cosmetic. I does not affect the function of the component in any way.