Spyderco Gauntlet Premium Sharpening System Black/White. Its injection-molded high-impact-plastic base has an integral handguard and specially designed holes that hold abrasive rods at the perfect 40-degree angle (20 degrees per side) to create keen long-wearing edges. The star-shaped holes allow the rods to be turned to expose fresh abrasive surfaces or to orient the edges of the rods for sharpening serrated edges. Ideal for most sharpening needs including reprofiling badly worn edges and very dull knives the Gauntlet Premium includes both fast-cutting Cubic Boron Nitride (CBN) rods and fine ceramic rods. Specifications for Spyderco Gauntlet Premium Sharpening System: Manufacturer: Spyderco Color: Black/White Blade Material: Ceramic Package Contents: Spyderco Gauntlet Premium Sharpening System Spyderco 603FCBN: Gauntlet Premium Sharpening System Black/White