Slant Rack side wings by Road Ready. Each side wing holds up to 40 lbs and gives you additional working space of 20″ x 15″ per side. Designed to mount easily on the top of your rig when you need them and fold away snuggly into any of our slant rack systems ( 6u and up) when you don’t, all rrmw wings come in a 1U metal rack mount storage tray for convenient transport. Your workplace problems solved! Another patented Road Ready Design!