Up for sale is nice used Snap-On Engine Compression Tester Gauge Set. This is Snap-On part MT-308FB and includes the following No engravings or owners marks.

Brand: Snap-On
Engine Type: Gasoline
Accessories: Carrying Case, Fittings, Quick Connector, Thread Adapters
Type: Compression Tester
Vehicle Type: Passenger Vehicle
Manufacturer Part Number: KRA-308FB
Maximum PSI: 250 PSI