Shark Skin Tsuba is a premium-quality tsuba made with dyed shark skin over a nubuck leather base. It makes an excellent gift for Kodansha-level senseis. Diameter: approx. 9 cm, Inner diameter: approx. 32 mm, Thickness: approx. 6 mm,Weight: approx. 30–40 g, Includes gift box. Available options are Black and Toragara. NOTE: This is for size 39, but please be aware that it may not fit bamboo swords with thicker handles.