BOOVAX Acrylic Display Case Compatible with Lego 21319 - 13.78 x 9.84 x 5.9 inch - ShowcaseThis transparent display case is compatible with Lego 21319 model.Display case size: 35 x 25 x 15 cm / 13.78 x 9.84 x 5.9 inch (Length x Width x Height)Package Including:1 x Display Case (5 transparent panel + 1 black plate)1 x Mounting packFrequent Problems1, Why is display case blurred?After completing display case assembling, please make sure you have tear off 2 protective films of each panel. Only after you tear off 2 protective films, you can see the transparent display case .2, Why does hole not match connector ?Mounting connector should be attached inside of each panel, it will be matched.3, Why is Pin not being locked?Please insert Cover / Cap inside of hole, then insert Pin inside hole, Press tightly till hear click sounds, which means locked. Dont insert Pin only, otherwise, it can not be locked.No matter what problems you have, please tell us to get solution. Thanks!