Designed and engineered specifically for the Pioneer DJM-900 Nexus mixer. Custom made to protect! Manufactured from polycarbonate, a tough and transparent plastic - hardwearing and impact resistant making it an essential investment. Rigorously tested before it carries our name. The cover shields faders and knobs from dust, liquids and other damaging elements. Accommodates cables and encases controllers. Recommended by the industry - used by individuals!