Features 1、Metal guitar slide: made of 304 stainless steel with good quality. 2、Can offer superior sustain, excellent intonation, and a clear bright sound. 3、Clear glass slide: made of seamless pyrex glass and processed from good quality boron silicate. Specification This guitar slides has excellent texture, smooth feeling. The surface is smooth and unflawed, can touch the strings more gently and produce a crisp, persistent, warm sound that resonates. It is the best choice for ballad and electric guitar. Features: Metal guitar slide: made of 304 stainless steel with good quality. Can offer superior sustain, excellent intonation, and a clear bright sound. Clear glass slide: made of seamless pyrex glass and processed from good quality boron silicate. Slip smoothly on the strings, make much softer, subtler, harmonics sounds. Slide bar is a kind of guitar playing skills to increase control or make guitar playing feeling richer timbre. Suitable for playing guitar, banjo, ukulele or other stringed instrument. Specifications: Material: metal/glass Color: gold; silver; black; transparent (optional) Item Size(Length * Outer Diameter * Inner Diameter * Thickness): gold & silver & black: 60 * 25 * 21 * 2mm transperant: 60 * 25.2 * 21 * 2.1mm Package Weight: gold & silver & black: 65g / 2.29ounce transperant: 15g / 0.53ounce Package Size: 60 * 25 * 25mm / 2.36 * 0.98 * 0.98in Notes: 1. Please allow 1-10mm error due to manual measurement, thanks for your understanding! 2. The guitar showed in the picture is not included. Package List: 1 * Guitar Slide Package List 1 * Guitar Slide