Oldschool Tone! Sweet slide sound for professionals and beginners. The Fender slide made of solid brass is elegant in every way. It weighs slightly more than the glass or lightweight metal models, providing a noticeable resistance in the fretting hand while playing. With the brass slide, you can produce beautiful warm, full tones on electric and acoustic guitars, along with a singing, long, bright sustain. Slide 1 Standard Medium wall thickness: 1.5 mm.