☆ Unused stock item. Although it's a no-brand product, the chrome plating is clean, and there's no looseness in the bridge. The wooden part feels strong even in thin areas, and I believe it's rosewood. I will deliver it to those who need it. Color: Chrome Weight: 83 grams Size: Length 13.7cm, Height 2.4cm, Width 1.5cm Width of 1st to 6th strings: 5.1cm I don't have enough information about this product to say for sure if it can be used on an archtop guitar. Please use it at your own discretion.