You will be able to see and access all ports onboard your RPi and set cable alignment. The flat top roof is for affixing a USB hub, heat sink or switch. Insert or access cable, SD card, audio input, GPIO pins. Compatible With Current Raspberry Pi's including Pi 3 B+, Pi 3 B, Pi 2 B, Pi B+.You can see raspberry PI 3B+ through this shell, which will not stop you from observing RPI changes.The highest can be stacked up to the 6 layers. According to your needs, the number of stacked has your decision. 1- layer, 2- layers, 3- layers, 4- layers, 5- layers or 6-layers.Without the aid of tools, you can complete the installation of the raspberry PI transparent shell.Installation steps:1.Remove the film from each acrylic panel2.Select an ordinary acrylic panel and fix the Raspberry Pi control board with screws and plastic spacers. Repeat this step as your number.3.Select one of the six acrylic panels with the Raspberry Pi control board as the bottom layer.4.Take the short copper column and the long copper column from the screw of the "Top screw" to fix the bottom layer. The side of the Raspberry Pi board is facing up, and the short copper column is at the bottom.5.Other control boards use a long copper column to stack the acrylic panels layer by layer.6.The top layer selects the acrylic panel with the Raspberry Pi logo, fixed with copper nuts.7.Assembly is complete.Colour:Transparent colorMaterial:AcrylicSize:12x8.5x19cmPackage Contents:7* Acrylic Bone Plate Stack(with matching screws)