AL-005 includes all Hydraulic symbols according to DIN/ISO 1219 standard. This magnetic set provides a quick method of drawing hydraulic circuits on a magnetic white board For step-by-step development of circuit diagrams. The symbols made of waterproof material and adhere to a metal-backed board. Connections and designations are marked with the whiteboard marker. This symbol set is very useful when the facilitator explains experimental hydraulic circuits to a classroom of students.