Grover Mini Rotomatic 205BCL6 Left Guitar Tuner/Machine 6 in-line mini Electric Guitar tuners Color: Black Chrome, Gear Ratio: 14:1 ; Post Height: 1 1/16 in. (27mm), Post Diameter: 15/64 in. (6mm) Bushing Dimensions: O.D. 5/16 in. (7.8mm) I.D. 15/64 in. (6.2mm) ; Collar Height: 25/64 in. (10mm), Collar Diameter: 25/64 in. (10mm) Item Number: 205BCL6 Available at Ant Hill Music!