Material: Sen (Japanese ash) Dimensions: 27cm x 16.5cm x 1.6cm Weight: 600g ☆ The end and side surfaces, which are prone to water absorption and blackening, are coated with a food sanitation law-compliant penetrating urethane oil (Kigatokame Ace). ☆ The front and back of the wood are unpainted. ☆ After use, wash and wipe off the water, then dry in a place not exposed to direct sunlight. ☆ Please refrain from soaking in water for extended periods. ☆ Please be aware that kitchen bleach may react with the wood components and cause blackening. ☆ Drying in a dishwasher may cause warping or cracking, so please avoid it. * Sen is a deciduous broadleaf tree widely distributed in Japan.