Compatible with electric guitars, easy to use and easy to install. An indispensable accessory for guitarists.Color:BlackMaterial: MetalWeight: 650g/set Package Included: 1 x headless guitar bridge 1 x lock nut 2 x nut Mount Screws 5 x Mount Screws 1 x Tremolo bar 1 x 1. 5mm allen wrenches 1 x 3. 0mm allen wrenches No packing box. Packed Safely in Bubble Bag.If you have any questions about our items, please feel free to tell us, we will reply within 24 hours and try our best to solve it for you, thanks in advance!