"Hyotan" Pocket Slip Joint Folder Blade steel: 440C Handle material: Tozaki bone mother-of-pearl & 18k gold "Hyotan" inlay Bolster: nickel silver Blade length: 2 3/16" (55m) Closed length: 3 1/16" (77mm) Special leather case made by Yuko "Hyotan" is Japanees for "Bottle gourd"