Double ended box spanner for 16mm and 21mm spark plugs. Detachable L-Bar for additional leverage and plug sizes etched on the tool for easy identification. 
Long reach tool (300mm) ideal for deep seated spark plugs.
Rubber retaining insert for secure spark plug removal.
Double ended 16mm (5/8") and 21mm (13/16") single hex (6 sided).
Outside diameter 22.2mm, inside depth 10.1mm.
Long reach tool for deep-seated spark plugs.
Detachable L-bar for extra leverage - L-bar length 155mm: diameter 6.7mm