Hi. This was a fun and quick pattern to use. I did buy the 30 degree triangle ruler the pattern suggested. Pattern name is Over Under by Swirly Girls. It gives directions for a 24", 36", or 48" diameter table topper or tree skirt. I made it for my daughter and she wanted a large skirt with a big hole so I made the 48" then added a border. The hole size I made was 9" to fit around her big tree stand. I can take a picture of the directions and email them to you if you'd like.