Adjustable idle jet for Bing carburettor Sachs Puch Zundapp and other models installed. The outer diameter of the nozzle is 5,7mm, outer diameter thread is 6,7mm and at the ribbed waistband I measure approx. 10.5mm diameter, the sechskant has Sch11mm, the Gesam length is ca 65-70mm depending on the setting Please after the end of the auction Absolutely Specify the Ebay article number as the purpose for bank transfer!.