{HEAD ~ The extension} 1 wherein {TAIL ~ a spirit level clamp} includes at least one resiliently hinged clamping member for bearing on a spirit levels opposite face for clamping a spirit level in a spirit level extender 
wherein
{ HEAD ~ The extension } 1 wherein { TAIL ~ a spirit level clamp } includes at least one resiliently hinged clamping member for bearing on a spirit levels opposite face for clamping a spirit level in a spirit level extender
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH