Shinwa Japanese aluminum saddle miter layout square with double 45 degree sides .
These squares are cleverly designed to ease marking out for 45 cuts.
They can also be used to transfer layout lines from one surface of your work to another. Measurements are in metric. Miter marking capacity is 3 . Overall size is 2 1/2" x 7 7/8". Finish is brushed aluminum. Made in Japan.