【Product Overview】 Set of 4 open-gear tuners for electric bass. These are vintage-style tuners, commonly found on Precision Bass (PB) and Jazz Bass (JB) guitars. 【Condition】 • Operation: All tuners have been confirmed to rotate smoothly. • Appearance: There are minor scratches from use, but no significant rust or noticeable damage, and the metal still has a good shine. 【Included Items】 All necessary parts for installation are included. • Tuner bodies ×4 • Bushings ×4 • Small mounting screws ×16 • Large screws ×12 (bonus - received these, but their purpose is unknown) ※ Everything shown in the photos is included. 【Size/Specifications】 • Color: Chrome (silver) • Type: For 4-string bass (right-handed, L4 configuration) • Markings: None (generic) 【Remarks】 Details such as the manufacturer are unknown, but these are suitable as spare parts, for restoration/repair of inexpensive basses, or for parts for a self-made bass. Instant purchase is welcome. Thank you.