- National Patents 201430110473.8 , 201420220072.2
- Ultra lightweight Aluminum Alloy with air-craft grade - Special steel spring with stable physical force, and the product has a lifetime warranty. - With the high-quality silicon pad, it fixes the string very tight but no hurt to the guitars. - Exellent mechanics structure design, you can use it with one hand and switch to other frets easily. - Suitable for Guitar,Bass,Banjo,Mandolin- Material: Aluminum Alloy
- Net Weight:35g - Colour: silver, dark brown - Package: 1pcs/blister box