Set of 4 ALCO style knobs. Large size. I believe I purchased these from Guitar Works. (They currently sell for ¥1870 when new) I put them on a Jazz Bass, but took them off immediately and have been storing them since. They are in beautiful condition, with only slight scratches if you look closely. All the set screws (two for each knob) are included. As a bonus, I'll also include the 1.5mm hex wrench needed for installation. They give your bass a high-end feel like a Sadowsky! 【Specifications】 Outer Diameter: 19mm Height: 16mm Inner Diameter: 6.35mm (inch size) Material: Aluminum Shaft fixing uses a 1.5mm wrench ＿＿＿＿＿＿ Sadowsky Marcus Miller Will Lee High-end bass fender bass volume pot ALCO knob tone knob barrel knob sombrero knob balancer volume knob