Yellow Mountain Imports Reversible Shin Kaya Go Table Board (Goban), 1.2 Inch Thick Shin kaya go board; shin kaya is the Japanese name of this wood and translates to "alternative kaya"; it is comparable to the highly revered kaya wood but is less expensive; our shin kaya comes from Tibetan spruce wood of the Yunnan province in southern China; it is also known as "dragon spruce" and as "picea asperata", its Latin botanical name; 1.2 inch (3 centimeter) thick shin kaya solid wood table board (goban) This board is Japanese standard size meaning the grids are 21.5 x 23 millimeters; the board's dimensions are 18.1 x 16.9 x 1.2 inches (46 x 43 x 3 centimeters); because of the nature of wood, the grain will be similar but not identical to the images you see in this product listing Reversible playing fields;19x19 playing field on one side and 13x13 on the other; the 13x13 playing field keeps your skills sharp by allowing you to play shorter games when you don't have time for a full length one; you will appreciate the informality and convenience of the smaller playing field; use the 19x19 playing field when you have the time to fully immerse yourself into a standard game Stones sold separately; stones are not included; please see our other listings for go stones; booklet on how to play go, "The Way to Go" by Karl Baker, is included to explain the rules and strategies of the classic game of go 30 day return policy; here, at Yellow Mountain Imports, we want you to be satisfied with your purchase; you are backed by our 30 day no questions asked money back guarantee so you can buy with confidence