This thick Rainbow Case, which fits Raspberry Pi 2 and 3 model B, is the ideal case if you want to use the Raspberry Pi in conjunction with a plug-in display or an add-on board. This thick Rainbow Case Type B consists of 7 colorful acrylic layers stacked on top of each other. The stable construction is fastened by screwing the layers together. This design of layers offer the Raspberry Pi a perfect protection, without concealing any plug and with keeping space for heat-sinks.