Create perfect 6, 9, or 12'' finished Pineapple blocks by squaring up each round of strips as they are sewn. Since each round is squared up before the next set is added, the blocks are perfectly square. The cutting requirements for the strips and center square are printed right on the tool. The widths of the logs finish to 3/4'' so even a six-inch block looks impressive. Add four more rounds to complete a 9'' finished pineapple. Add four more rounds to complete a 12'' finished block. It really is that easy, and accurate.