Made from lightweight and high strength titanium alloy TC21 It is produced by wire cutting, CNC machining, stone washing, and anodizing Handmade with craftsmanship quality, sturdy and durable Light weight and small. Fit well in your pocket or keychain Perfect tool for yourself, your wife and family members. Size: 58x30mm, Thickness: 8mm Material: Titanium 6AL4V Surface: Stone washed and anodizing Length:58mm Width: 30mm Thickness:8mm Hole diameter:5mm