Features: 3-in-1(10MM/12MM/14MM) Y type socket wrench, a great electric guitar/bass repair tool. 10MM is suitable for sealed-gear tuning peg hex threaded bushing. 12MM is suitable for guitar jack hex nut. 14MM is suitable for 3 way switch nut. Metal material, durable and sturdy. Specifications: Color: Silver Material: Metal Diameter:10MM/12MM/14MM(inner); 14MM/17MM/19MM(outer) Length:75MM/75MM/75MM Item Weight: 123g / 4.3oz Package List: 1 * Wrench