Easy to Use Quick Change Low Profile Design Sturdy Alloy Construction Suits Most Ukuleles: Soprano,Concert Tenor Baritone Also Suitable for: Mandolin Banjo Heavy duty spring action for fast and reliable clamping Precision manufactured from lightweight alloy for extra strength Silicone padding protects your fretboard, neck and strings PLEASE NOTE: To avoid potential damage, do not leave clamped to your instrument for extended periods of time.