COMPATIBLE WITH OPEN FRAME RACK MODEL 111: Specifically designed for the 24U Open Frame Rack Model 111 with a 28.875' depth TOOL-LESS INSTALLATION: Easy-to-install non-locking side panels for quick setup without the need for tools REQUIRES TWO PANEL KITS: Sold individually per side; two kits are needed to enclose both left and right sides of the rack ENHANCE RACK SECURITY: Provides additional protection and enclosure for the rack's equipment PRECISE FIT: Only compatible with racks of 28.875' depth ensuring a perfect fit for your setup