[Manage your RPI]you will be able to see and access all ports onboard your RPi and set cable alignment simply and with ease.The flat top roof is perfect for affixing a USB hub, heat sink or switch. Easily 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+,From then on, your RPI can be well placed. [High definition]Not only elegant design, but also very high transparency.You can clearly see raspberry PI 3B+ through this shell, which will not stop you from observing RPI changes. [6-Layers Acrylic Case]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. [Simple installation]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 panel(The acrylic panel is transparent) 2.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 he acrylic panel with the Raspberry Pi logo, fixed with copper nuts. 7.Assembly is complete. Colour:Transparent color Material:Acrylic Size:12x8.5x19cm Package Contents: 7* Acrylic Bone Plate Stack(with matching screws) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.