These high quality and durable stainless steel Speed Rails are standard choices for bars of all types and feature a two compartment "stair step" design. They keep your common liquor bottles in an easy access area for bartending efficiency. They come available in thee sizes, 22", 32" and 44". It all depends on the mounting surface, but in general if you're trying to hang the speed rail from an ice well or any piece of underbar equipment, a mounting kit will be necessary. if you're comfortable drilling directly into whatever substrate you're mounting against, you can skip the mounting kit.