Reihys y voluum jeh'n ushtey ayns cowrey rectangular
Cur fys ayns millimeteryn
X - lead y choonteyner.
Y - ard y choonteyner.
L - fad y choonteyner.
H - level ushtey;
Ta'n program ry-hoiaghey y towse laghyn ayns cowrey rectangular, towse immeeaght as saor, as slystyn ushtey.