Description:High Quality Material: The rod magnet is made of rubber and alnico, which offer strong magnetic and double-function properties. Magnet coating: The bar magnet has the best coating available that provides shiny and rust-resistant protection to the magnets. Portable: The magnet is small and lightweight, so you can take it wherever you go. Gift: The magnet is a good gift for guitar lovers. Mounting: The magnet is compatible with guitar pickup and humbucker. Specification:Material: ALnico & RubberColor: show as picture Size: 6.2*0.6*0.5cm/2.44*0.23*0.19 inchNote:There may be several color distortions due to different computer resolutions. There may be a slight error due to different manual measurements. Package Included: 8pcs Generator Magnets,