KAMA-ASA 

Established in 1908 in Kappabashi, a district renowned as Tokyo's kitchen-town, KAMA-ASA attracts a diverse clientele, ranging from home cooks to tourists and professional chefs from across the globe. Notably, esteemed chefs in New York hold Kama-Asa in high regard.

This bento box absorbs excess moisture from the rice and keeps the fluffy texture and tasty savor. Since there are no metal included, it can be placed in a microwave.
The inner ring is made of sturdy hinoki wood, bent one by one. The base and lid are made of sawara cypress wood, known for it's sustainability for several years. The binding material for the inner ring is hand-joined with cherry bark, which has been used since ancient times.