1、Exquisite workmanship, design in line with product characteristics. Special anti-rust treatment, can be used with confidence 2、Using good-quality aluminum alloy material, stronger and more durable. Possess good strength and corrosion resistance 3、Come with beautiful appearance, strong and durable. The surface of the item will not be scratched or damaged during maintenance 4、Adopt good-quality metal, around 3-circle semi of the chord have accurate workmanship 5、Reasonable design takes into account both functional and aesthetic needs. The use of materials is stronger, more durable and beautiful 1 x Chord Circle1 x Chord Nail1 x String Loop Item Type: Piano Chord ChangeMaterial: Aluminum alloyChord Nail Size: Approx. 6.4cm / 2.5inString Loop Size: Approx. 8.4cm / 3.3inChord Circle Size: Approx. 4.6cm / 1.8in