3 Piece Set 1/8" Equilateral Sizes. You Get One of Each, 2 1/2", 3", 4" Use your rotary cutter to cut out stacks of strips with these templates. Set does not have seam allowance, . Marked measurements are actual dimensions from top point to bottom. Markings are laser engraved for long lasting use. 1/8" Thick Acrylic