“Quality appears to be fine, but the sizing needs to be written more clearly. A common plug has a hexagon section size (where the spanner or socket fits) of 13/16" AF which will not fit into this plastic holder.
Apparently "Fits up to 19mm spark plugs" means only spark plugs with a hexagon section size of 19 mm (3/4") AF or smaller, will fit into these plastic holders.
JC.”
“Quality looks fine but the sizing needs to be written more clearly. A common plug hexagon size is 13/16" AF which will not fit inside this holder. "Fits up to 19mm spark plugs" apparently
means a hexagon size of no more than 19mm or 3/4" AF.”
