Ruler holders are made of white pine wood and have 7 slots that hold rulers and/or templates. Ruler holder is approximately 10" x 8" x 3/4". Photo is an example of our ruler holders; keep in mind that each ruler holder has unique grain. Ruler holders are made by a 90 year old male quilter (who started quilting at 83 years young). Ruler holders do come in other sizes, please email for other sizes and prices.