A standard, hort reach plug for town riding / touring use for the Piaggio Vespa 125 / 150 PX etc. 
These are the equivalent to the NGK B6HS plug, but have a smaller tip so give a cleaner spark making them much more efficient at burning the fuel. 
 
These are quite a hot running plug for standard engined scooters only. Denso are rated the best plugs by many scooterists.
 
Product code: LUGSC3073