A short reach plug for town riding / touring use for the Piaggio Vespa 125 / 150 PX etc. 
These are the equivalent to the NGK B7HS plug, but have a smaller tip so give a cleaner spark making them much more efficient at burning the fuel. 
 
These are also a cooler running plug than the standard W20FS-U (B6HS equivalent)
 
Product code: LUGSC4025