Feature: 100% Brand New and High Quality. Double coil guitar humbucker accessories kit with bar magnet, bobbins, height screws and springs.(Magnet wire is NOT included ). Alnico II magnets give a warmer tone and low end response with smooth, singing highs. You can build your own guitar pickups from the ground up, wind it your own way for custom tone! Specification: Bar Magnet: Magnetized, Alnico II. Demension: 2.441 x 0.501 x 0.118in/62.02 x 12.69 x 3.04mm. Bobbin: Unwound PC plastic bobbins, white/black/zebra color for your choose. Pole Spacing: N(Neck Pickup)-50mm /B(Bridge Pickup)-52mm. Polepieces: Nickel-plated steel polepiece slugs & Nickel-plated polepiece screws. Metal Polepiece spacer: length is about 2.289in / 58.27mm. Plastic Shim: length is about 1.919in / 48.76mm. Condcutor Cable: 28awg, 7-strand, tinned copper wire stranded tinned conductors(4-conductor cable). Length=1.5ft/45.72cm. Humbucker Baseplate: Copper-nickel alloy. Bobbin mounting screws: golden color. Pickup Height Adjustment kit: come with 2pcs springs and 2pcs screws. Package list: 2 x humbucker pickup bobbins 6 x nickel-plated steel polepiece slugs 6 x nickel-plated polepiece screws 1 x alnico 2 bar magnet 1 x metal polepiece spacer 2 x plastic shim 4 x bobbin mounting screws 1 x conductor cable 2 x pickup height screws 2 x pickup height springs