Symphony Tech Guitar Capo - Acoustic - Bass - Electric - Ukulele - Banjo - Mandolin - Trigger Style Capo - High Quality Profesional Guitar Capo - BUILT TO LAST - Lightweight and made of high quality aircraft aluminum Will Not Scratch - good quality silicone pad that will protect your Instrument against damage Precise Steel Spring - Heavy duty internal memory steel spring guarantees a secure fit - ideal for most acoustic and electric guitars Instantly raise pitch & change key WITHOUT having to retune - Keeps strings in tune Silicone Padding prevents noise from strings