Hydraulic Trainer Kit_ each consisting of the matching components and accessories, Pressure relief valve pilot- operated For Hydraulic Trainer Kit, Four- Way distributor with five ports_ equipped with a pressure gauge For Hydraulic Trainer Kit, Double acting hydraulic cylinder with a control cam, Piston diameter16 mm_ Piston rod diameter10 mm_ Stroke length 200 mm For Hydraulic Trainer Kit, One- way flow control valve Withintegrated check valve For Hydraulic Trainer Kit