Quilting rulers there for Quilter yes in inch and cm graduations, depending on your preference or template you can use one or the other. Practically in this ruler is that one can use it for straightening or cutting square blocks. Ideally combined with a rotary cutting mat, so that one hangs up the ruler just once on the fabric and then have to move anything. So there will be no Ungenaugkeiten and you can the whole by turning the cutting mat lay out. Very convenient and timesaving. The high visibility of the two-color classification (yellow and black) benefits both in bright as dark fabrics.