Designed to allow the removal of vavle spring and vavle stem oil seals with the cylinder head in place.
Fast set up time due to the twin raio pivot system.
Single handed operation.

Contents:
^_. support bar X 2
^_. spark plug air-line adaptor
^_. adjustable upright X 2
^_. compressor force screw assembly
^_. Valve adaptor
^_. extension rods