BD7930, :10,30,30,40,50, and 60 parts to the inch,WITH REVISED scale ITEM NO. SPECSQTY/PCS MEAS(CM)793030cm triangel scale ruler(1:100)color box, 10034.5*20.5*35893030cm triangel scale ruler(1:100),pvc box pack20038*37*37993030cm triangel scale ruler(1:20)20038*37*37923030cm triangel scale ruler(1:10)20038*37*37943030cm triangel scale ruler(1:1000)20038*37*37693030cm triangel scale ruler(INCH) ...