Check the listing for details. GOTOH SGV510Z-A01 Tuning Machine Midsize body-Large Knobs - Pre-Configured Sets. Color: Black, Condition: New. Listed at 94.99 USD. Guitar and Bass tuning machines are sold by the side of the headstock they are mounted when viewing from the front. Left or Right side is not the same as left or right handed. Please remember this when placing your order.GOTOH SGV510Z-A01 Midsize Tuning Machines Sold in pre-configured sets - 3Lx3R, 4Lx2R Standard non-locking string posts Large metal knobs 1:21 tuning ratio 0 degree offset mounting hole (the mounting hole is located directly below the vertical center of the string post) ROCK-SOLID posts prevent the rocking of string post LUBRI-PLATE lubrication for smooth action and longer life Includes bushings and mounting screwsThe SG510 is GOTOH's flagship super machine head. The SGV510Z with its 1:21 gear ratio has evolved through improvement without compromise. We are selling the SGV5.