MRNHA 6 Pieces Guitar String Tuning Pegs Keys 3 Left 3 Right Guitar Machine Heads Knobs with Strap Button Locks Picks and Guitar String Winder (Black)

Guitar tuners pegs with heavy duty internal gear, sturdy and convenient With this string winder, you can replace and adjust your strings easy and labor-saving, the notched can removes bridge pins quickly and safely. (Random Color) Guitar strap buttons contains two nickel-plated steel strap buttons, felt washers, and mounting screws. Easy to install, just attach it to your strap, and screw securely into locking position