The Metalmark from Microtech has uniquely shaped handles that open to reveal a blade shape that simply flows. The channel handles are aluminum, black anodized with Torx pivot screw adjustment and a spring loaded latch. The blade is 154-CM steel with a stonewash finish. The build on the Metalmark balisong is solid. Specifications: Overall Length: 9.125" Blade Length: 3.875" Blade Steel: 154-CM Handle Material: 6061-T6 Aluminum Closed Length: 5.25" Weight: 4.8 oz.