Speedring Video Pro 7-1/4"

Chimera Video Pro Circular 7 1/4? (185 mm) Speed Ring 9120 adapts to...
Mole 575 Par, Baby Baby 1K, Mickey 1K,
ARRI Arrilite 650/800/1000 Open Faces,
LTM Pepper 500/1K, Old Cinepar 575,
Strand Polaris Bambino 1K,
Cinemills SE Par 200/575.