Item Type: Electric Guitar Skull Knobs Material: Metal Package List 3 x Electric Guitar Skull Knobs 1 x Wrench 1WIDE APPLICATION: The knobs are fully compatible with all brands and models of electric guitars and can be easily installed and replaced with a simple set screw and a universal 8mm shaft 2CORROSION RESISTANT METAL: Electric guitar skull knobs are made of premium metal materials with a treated surface that provides excellent corrosion and wear resistance to maintain appearance and use for a long time 3UNIQUE SHAPE: The knob is designed with a calm and unique skull shape, which can meet the musical preferences and aesthetic tastes of certain guitarists, while paying attention to detail and design 4SMOOTH TOUCH: Electric guitar skull head is smooth and easy to operate, can give your electric guitar a personalized touch and look, adding musical expressiveness and decorative effects 5FOR GUITARISTS: A variety of guitar enthusiasts and musicians can use this volume tone knobs on their guitars and swap them out or pair them with other knobs or styles