TREFL is a unique interpretation of the popular stool. Its characteristic and fancy form reminds a four-leaf clover … which brings good luck. The family consists of three types of seats of different sizes: pouf, stool and bar stool. ln addition, the stool can be used as a table when you put a separate table top on it. There are different variants of sewing finishes to choose from: standard seam, right-hand seam and right-hand seam with an additional inset in any color.