Quilter's Select Non-Slip Rulers feature easy-to-read lines for marking and measuring fabrics as with measurements going right to left and left to right. Each ruler has a unique non-slip coating that keeps the ruler in place on fabric for easy, accurate cutting.
Easy to read lines for marking and measuring your fabric - 1/8" , 1/4" , 1/2", 3/4" and 1" markings as well as multiple angles.
Unique non-slip coating makes for more accurate cutting.
One inch lines with two sets of corresponding numbers are placed around the perimeter of the ruler and read left to right and right to left -- never lose your place or have to count backwards!
This ruler features an exact measurement around the perimeter -- no more accidental cuts and squaring your blocks has never been easier!
Quilter's Select 3N1 Square & Triangle Ruler is your ultimate tool for cutting half-square & quarter-square triangle units, plus basic squares up to 6 ½ inches! Eliminate the tedious math associated with traditional half and quarter square triangle units. Create complex looking blocks with ease thanks to the Quilter's Select unique non-slip coating for accurate cutting.
Half-square units:
• Determine the finished size of the unit. (4” finished half-square units needed) • Add ½” to the finished size for strip cut size (i.e.: 4 ½” for 4” finish) • Cut fabric strip to determined size.
• Position top edge of ruler along top edge of strip; cut.
• Flip ruler 90 degrees: cut.
To stitch units together
• Position triangles right sides together, matching blunted corners. • Stitch using ¼” seam allowance.
Quarter-square units:
• Determine the finished size of the until. (ie: 8” finished quarter square units needed). • Divide finished size in half (i.e.: 4”), add ½” for strip cut size (4 ½” for 8” finish). • Cut fabric strip to determined size.
• Position quarter square corner of ruler at the top edge of strip; cut both edges.
• Flip ruler 90 degrees: cut.
To stich units together:
• Position two of the triangles right rides together. • Stitch using ¼” seam allowance. • Repeat for second set of triangles. • Press seam allowances in opposite directions, position pieced units rights together, nesting the seams.
FREE! Download a Ruler Primer project for the 3N1 Square And Triangle Combo Ruler! Includes instructions, block files, and a coloring page!
It looks like the only ruler that is 2.5" and longer then 24" is the 2.5" x 36", at this link. https://www.embroidery.com/product?productID=38315... Please let us know if you have any other questions. Have a good day!
Video Showcase Featuring The Quilters Select Rotary Cutting System 
Quilter's Select Precision Machine Quilting Rulers
Cynthia J.