"Profile rails with mounting facility for 483 mm units (19""), e.g. light PA amplifiers, power packs, additional equipment . 2 removable covers (double-door version). High-quality workmanship with 9 mm multiplex birch wood, dark brown laminated. Aluminum profile frames (30 mm) with rounded edges. Three-leg, medium-sized steel ball corners. 2 recessed case handles with mounting dish and backing ring. 4 butterfly locks. 4 wheels with 2 brakes. Available in different height units (1 U = 44 mm). Made in Europe."