Features: Keep your guitar in tune and keep your bridge locked in place. Tremolo Stop Lock Keep your "Floating" Tremolo in tune and in control. Easy installation and easy adjustments, using wrench to lock it in position. Prevents inadvertent vibratos effects produced by resting the picking hand over the bridge while playing, Screwed into the rear cavity between the tremolo springs, it provides a back stop for the bridge. Package includes: 1pc tremolo stopper,1pc felt pads, 2pcs mounting screws, 1pc wrench. Specifications: Materials: Metal Size: As shown in the picture Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1set Tremolo Stopper