Features The case is suitable for 4 Model B, with protection and heat dissipation function, 100% new, high quality, reliable and safe. Made of high quality ABS material, hard and scratch-resistant, long-term use is not easy to deform, exquisite workmanship, smooth and delicate appearance, durable and durable. There are several openings under the bottom cover to allow even and efficient heat dissipation, which probably makes your life more enjoyable. The heat dissipation shell has a standard size, which can be perfectly adapted to the motherboard, with stable performance and strong practicality. The kit comes with 4 non-slip rubber pads for easy attachment of the protective case, more convenient to use, small, lightweight and easy to carry. Specification: item type: housing Material: ABS Application: For 4 Model B Package List:1 x Housing4 x Screws4 x Non-slip Pads or 1 x Casing10 x Screws4 x Nuts1 x Fan4 x Non-slip Pads Package List 1 x Enclosure 10 x Screws 4 x Nuts 1 x Fan 4 x Non Slip Pads