We use 4mm thick Lauan plywood. Please create wonderful pieces with your favorite designs. Since we cut with a fret saw, please allow for some size誤差. There may be cracks on the back of the cut edges or brown spots. Please refrain from purchasing if you are concerned about minor details or if you are seeking perfection. Please refrain from price negotiations. In addition to the 24cm size, we also have 27cm, 21cm, 18cm, and 15cm sizes. We do not have storage space after cutting, so we will make them to order. Please understand that it will take some time. 27cm - 750 yen 21cm - 460 yen 18cm - 350 yen 15cm - 250 yen Shipping is an additional 200 yen. If you are interested, please comment with the size and number of pieces you would like.