This is a brand new set of 2 ( two)  Amal 932   928/104 jet needles used on late model 32 mm carbs used on 850 Norton Commandos. Norton part # 06-8102.

   Needles have 3 circlip grooves and 4 small ID rings above the grooves,  these are used with the late type 850 stepped spray tube 928/107 .

   A good thing to replace with a new set of .106 needle jets to lean down the mixture and stop fouling spark plugs.

    See picture of ID rings and be sure this part is right for your carbs.