1 [String Retainers Tree] These string retainers are the type with small rollers that help maintain intonation and prevent string breakage. 2 [Mounting Screw] The string retainer comes with 2 mounting screws and is a good replacement for broken, dirty or old wire grippers. 3 [Reduce String Stress] The rollers on the string retainer reduce the stress on the strings, which keeps the guitar in tune longer. 4 [Prevents Wear and Tear] The string retainer prevents string wear and tear, thereby extending the life of your strings. 5 [Durable Material] The string retainer tree is made of brass and zinc alloy, hard wearing and compatible with electric guitars and basses.Item Type: Electric Guitar Roller String TreeMaterial: Brass, zinc alloySize: Approx. 1 x 0.9 x 0.26cm / 0.4 x 0.35 x 0.1in

What's in the box
2 x Electric Guitar Roller String Tree2 x Screw