Office Desk 2 Chairs Set: Crafted with ergonomics in mind, this study chair is designed to safeguard the spine, bolster the waist, and alleviate fatigue from extended periods of sitting. The durable PP material backrest absorbs impacts and is perfect for the energetic nature of young students.150cm Long Rectangular writing desk with brown wood top ,black metal legs. Ventilated Seat Cushion: The seat cushion features a breathable mesh fabric that prevents dampness and ensures comfort throughout the day. The thick, high-density sponge padding offers a plush sitting experience, keeping students energized and focused. Durable Base and Gas Lift: The chair's base boasts a robust five-star support structure with a 240MM diameter, ensuring stability for the entire chair. The gas lift is SGS certified to Class 2 standards, ensuring durability, strength, and a weight capacity of up to 100KGS. Versatile Adjustments: This adjustable chair caters to various heights, with a range of 75-85CM, to accommodate growing students. It features 360-degree swivel wheels for smooth transitions between different activities and study spaces. Please note, for children weighing less than 40KG, the gas lift mechanism may be challenging to operate for height adjustments. It is recommended that parents assist in making these adjustments to ensure comfort and safety. Assembly with paper and video guide : This chair is designed for easy assembly, requiring only four steps to set up. The included screw pack and installation tools make the process hassle-free, ensuring that students can quickly get back to their studies with minimal setup time.Pay attention to the desk assembly, we have video guide for you.If any question, feel free to contact our sales team for promt solution.