TruChord Pro Capo V - One of the Best Guitar Capos for Acoustic & Electric, Bonus Chart Included BONUS Capo Chart Included for quick and easy digital reference. Compact and Durable - 3 ounces of Professional Grade Kirsite Metal Alloy. Satisfaction Guaranteed - Replacement Warranty. Immediately play any Musical Key without Fret Buzz. Easy on strings. Perfect Guitar Capo for Kids & Adults, Ideal for 6 string, not recommended for 12 string or instruments with overly thick necks.