FURINNO Hidup-Adjustable Cooler Fan Notebook Laptop Table Portable Bed Tray Book Stand, X7 Black . Guidelines:. (1) Maximum recommended weight is 33 lbs (15 KGs). PLease pay attention to the weight limit to avoid any possible damage to property and health. (2) This product applies button spring-locking technique. Before you put things on the panel, please make sure that you have adjusted the joint to the suitable angle and lock it to avoid accidents. (3) The panel is supported by folding-bracket structure on both sides. Before you put things on the panel, please make sure that you have adjusted the panel to the same height on both sides to avoid things from sliding. (4) This product is mainly made from aluminum alloy. Please avoid using it under long-term high temperature or low temperature environment to protect your skin from over-heating or super-cooling panel or bracket.