These unglazed square pots provide excellent breathability. The bottom has a drainage hole and four legs to ensure maximum drainage.
They are Banko ware and made in Yokkaichi. Banko ware is known for donabe (earthenware pot), kyusu (Japanese teapot), and various types of bonsai pots.
Who Makes It
Morisun is based in Banko and specializes in distributing Banko ware bonsai pots.