Professional guitar accessories, delicate in shape and lightweight, high quality polymer composite material, comfortable to hold, high strength memory wire spring, nice ealsticity, sturdy and durable, high quality silicone pad, protect guitar perfectly. Features: Elegant, concise and curved shape design, convenient to use and carry. Durable polymer composite material, comfortable to hold. High strength memory wire spring, nice ealsticity, sturdy and durable. High quality silicone pad, ensure nice sound and avoid scratching. Excellent structure on the basis of mechanics theory design, easy to open and clip. Aircraft grade aluminum, elegant design and nice compact, oxidation treated surface, keep color long. Comes 5 picks for free, random color. Specifications: Product Material: Polymer Composite Material Pad Material: Silicone Spring: High Strength Steel Wire Color: Black Standard: GB/T22844-2009 Grade: A Package Weight: 40g / 1.41ounces Package Size: 120 * 90 * 15mm / 4.72 * 3.54 * 0.59in Packing List: 1 * Guitar Tone Changer 5 * Picks (random color)