{HEAD ~ The spirit level clamps} are designed to clamp {TAIL ~ a spirit level} in a spirit level extender, and preferably include a lateral securing arrangement for precluding lateral movement of a spirit level in a spirit level extender 
are designed to clamp
{ HEAD ~ The spirit level clamps } are designed to clamp { TAIL ~ a spirit level } in a spirit level extender , and preferably include a lateral securing arrangement for precluding lateral movement of a spirit level in a spirit level extender
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL 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