Marathon Flight Road Blk Series Case MA-M4Ultblk 10U Slant Mixer Rack/4U Vertical Rack Sys With Laptop Shelf Black coated finish / Patent pending design laptop shelf Durable and solid rack rails / ATA 300 style Spring action handles / Easy locking fit and tongue Heavy and Powerful ball cHorners / Industrial strength latches and rubber feet Dual anchor rivets / Laminated 3/8 Inch plywood