1. The 1U Rack Mount adapter kit fits all Standard 19" Racks and Cabinets; 2. Thickness of 2 MM cold rolled steel material to stand your kits safely and strongly, electro-static powder coated finish 3. Available in a variety of audio system equipping with Shuer SLXs ( SLX2, SLX4, SLX14, SLX24, SLXD4 which were named differently on working with different coupling set - likes of handheld SM58A, BETA58A, BETA87A, lavalier, headset, headphone, collar clip, backpack set); A Reminder: The bracket kit NOT fit for other receiver models besides the Shuer SLX series.