Feature: <br /> Checking Compression On Petrol Engine Quickly And Accurately <br /> Easy Pressure Release Button On Side Of Tester <br /> Completed Kit Comes With Adapters For Most Applications <br /> Kits Includes 2 Rubber Cones Ends Which Do Not Need To Thread Into Head <br /> 3" Gauge Features Dual Color Scale <br /> <br /> This Item Is Perfect For Checking Compression On Petrol Engine Quickly And Accurately. It Diagnoses Problems Quickly With 2 Rubber Cones Ends Which Do Not Need To Thread Into Head. Our Item Is Suitable For Petrol Engines On Lawn Mowers, Motorbikes, Cars, Trucks And So On.