Compact and easy to use; manual operation keeps knives sharp without batteries or electricity ERGONOMIC & DURABLE. The FASTEDGE II Chef Knife Sharpener comes with adjustable sharpening and honing spring-action rods, made of tungsten carbide and an engineered ABS Polymer Body. The ergonomic handle provides a comfortable, easy grip. Ergonomic, durable design with tungsten carbide and ceramic sharpening rods for effective blade maintenance Non-slip silicone base provides stability and safety during sharpening; fits easily on any countertop Two-stage sharpening system restores dull blades; lightweight size fits in kitchen drawers or travel bags Precise sharpening for standard and beveled blades; engineered ABS polymer body for long-lasting performance