The main part is made of black leather and called the 'toko', the front is fastened with a kako (buckle) and the dabi (the end of the belt opposite the buckle end) is inserted into the obi at the back.
本体は黒皮製で「床」と呼ばれ、前を鉸具（かこ/バックル）で留めて鉈尾（だび/ベルトのバックルと反対側の端）を背中にまわった帯の間に差し込む。