This knife is made of titanium alloy and has a blade that folds into the handle. The size of this keychain knife is small enough to be discreet but large enough for everyday use. It's perfect for cutting rope or opening boxes without damaging your nails! Specifications: Handle Material: Titanium AlloyHandle diameter: 10mmBlade material: stainless steel 420j2Knife unfolded length: 75mmKnife closed length: 50mmBlade length: 25mm, width: 10mm, thickness: 2mm Package Includes:1 x Titanium Alloy Mini Folding Keychain Knife Note: 1. Due to the difference between different monitors, the picture may not reflect the actual color(s) of the item. We guarantee the style is the same as shown in the pictures.2. Please, allow slight dimension difference due to different manual measurements.3. The measurement allowed error is +/- 1-3cm.