Features:  360° rotatable pivot, easy to adjust for efficient knife sharpening; the knife clamp can be 180° flipped, sharpening both sides of the knife effortlessly.  The knife sharpener need to be assembled by yourself, easy to assemble via a few steps; 55mm maximum clamping thickness, easy to clip on the desktop.  The angle of the sharpener itself is fixed at 15°, just adjust the angle between the sharpening stone and the knife; adjust by 3°, the angle of the sharpener and then knife is 18°.  Equipped with 4 whetstone of different grit (120 / 320 / 600 / 1500 ), satisfying different requirements. 2 whetstones can be installed simultaneously in the sharpener.  Mainly made of alloy material, this heavy duty sharpener is durable and wear resistant. Comfortable and non-slip handle is adjustable, which allows easy grip and efficient sharpening.  Widely used in home kitchen knife, chef knife, fruit knife, scissors and more kinds of knives. Clean the knife's surface and spray water on the surface of the whetstone before sharpening.    Note: Size and color may be slightly different because of manual measurement and different light conditions. Thanks for understanding.    Specifications:  Main Color: Silver  Main Material: Alloy  Pivot: 360° Adjustable  Knife Clip: 180° Flipped  Whetstone Grit: 120 / 320 / 600 / 1500  Clamping Thickness: Maximum 55mm / 2.17in  Item Size: 48 * 20.2 * 13cm / 18.90 * 7.95 * 5.12in (As Picture)  Package Size: 27 * 13.5 * 9.3cm / 10.63 * 5.31 * 3.66in  Package Weight: 1134g / 2.50lbs    Package List:  1 * Knife Sharpener Kit  4 * Whetstone  1 * User Manual (English)  1 * Cloth Bag