Product Selling Point: 1.The package include 3pcs black under desk storage and 6pcs screws.Each under desk storage shelf Size(L*W*H):4*1.2*1.3inch. 2.The under desk holder made of high quality aluminum, Which is not easily damaged and rusted compared to other materials. 3.The under desk laptop holder ergonomic storage solution mounts securely under your desk,store your laptop under the desk to free up desk space,utilize the wasted space under the desk. 4.Place the laptop in the holder and mark the brackets locations under the desk.place each bracket to the marked locations.Secure each bracket by screws with screw driver. 5.The best gift choice is the best gift for your relatives and friends at Christmas and Thanksgiving Product Specification: Product Name:Under desk holder Set Materials:Aluminum Size:10*2.9*3cm/4*1.2*1.3inch Color:Black/Silver Package include: 3pcs Under desk holder 6pcs Screw Note: 1.Please Allow 1-2cm Differences Due To Manual Measurement. 2.Due To The Light And Screen Difference,The Item Is Color May Be Slightly Different From The Pictures. Service Guarantee: If you have any questions about our products, please feel free to contact us, we will provide you with quality services and the best solutions.