Williams Blade Design SZF002 Shobu Zukuri Folder Black Ultralight Folding Knife was projected by Christopher Williams. Milled from a solid piece of lightweight 7075 Aluminum, with a tough Sleipner steel blade, this folder is the ultralight version of the SZF Series. The Black edition is our reduced signature offering with a black oxide finished blade and hardware for covert carry. For this project we utilized LionSteel’s expertise as pioneers in solid knife technology. The result is an integral folder that is both exceptionally strong and lightweight.