If you need unassembled jewel cases for your discs, we offer a clear case with black tray option. Saves time in disassembling jewelcases to insert art. Each Lot of 400 is shipped in 3 cartons - as 1 carton of 400 black trays and 2 cartons of clear cases, 200 per carton. Total shipping weight for a lot of 400 cases is 60 lbs (20 lbs x 3 cartons).