This guitar slide adopts premium Brass and plastic, sturdy, anti-rust, durable for long time use. Also suitable for bass etc string instruments.The bass slide with precision processing ensures sleek surface, which is good for sliding on strings to make nice sounds. Suitable for guitar lovers.The diameter of guitar tone bar slide is suitable for most people. Offer you superior sustain, excellent intonation, and a clear bright sound.Guitar Slides are perfect and comfortable to wear, ALLEVIATE finger ache while long-time practicesize:7.4x2.5cm Material:Brass + plasticcolour:As ShownPackage Contents:1 x slider3 x rings (19mm/20mm/21mm)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.