Yoshihiro Natural Magnolia Wood Saya Cover Blade Protector for Nakiri (165mm) 6.5in Saya Knife Cover/Blade Protector (ONLY for NAKIRI or USUBA Knives) Material : Japanese Natural Magnolia wood/ Safety pin Included INSIDE DIMENSIONS : 1.81" W x 0.098" H (46mm x 2.5mm) Available in NAKIRI/ USUBA 165mm(6.5")/ Please check attached pictures for your size reference. Any questions in regards to compatibility, please contact us at Info@echefknife.com or (310) 777-0227. *Does not fit to our Yoshihiro Kurouchi/Black-Forged Series