Creative Grids 2 Peaks in 1 Triangle Ruler Quilt ToolThe Multi Size 2 Peaks in 1 Triangle ruler combines the angles you need to create triangle in a square blocks which require a two to one ratio. The unique keyhole cut out allows you to rotary cut both angles with one tool. Cut the tall, center triangle from strips measuring 1 1 2 inch 6 1 2 inch with no waste. The markings on the ruler show the finished size as well as the strip width required. Cut the side triangles with the other triangle. Again,