Feathered Star Ruler
A ruler that measures squares in 1in, 1/2in, 1/4in, 1/8in and 1/16in increments - over 50 different sizes from 3/4in to 4 5/16in.
It can be used for rotary cutting squares two triangle squares, and four-triangle squares, like the Precision Trimmer 6, only with a lot more square sizes.
This tool measures 8-1/2in x 8-1/2in