Best Seller | 6pcs Black Iron Electric Guitar Through Body String Mounting Ferrules DIY Description: 6 Pieces Guitar Through Body String Mounting Ferrules. Brand new and high quality testing is fine. Great your old or broken ferrules. Perfect for electric guitar easy to use Material: Iron Color: Black Size Chart: D: Approx. 8.3 x... more | | $9.73 FREE shipping go to store |