【Comfortable backrest】 The backrest of this desk chair is made of PP material, which is resilient and can reduce impact, suitable for lively teenagers. Ergonomically designed study and office chairs can effectively protect the spine, support the waist, and prevent prolonged sitting fatigue. 【Breathable seat cushion】 The seat cushion is designed with mesh fabric, which is very breathable and not damp. The thick high-density sponge provides a comfortable sitting feeling, making you energetic all day. 【Mobility】 The chair is equipped with 360° rotating wheels that can smoothly move to any scene;This study chair office chair can be adjusted in height according to needs: 75-85CM; 【Sturdy base and gas lift】 The gas lift adopts the SGS certified Class 2 standard, which is sturdy and durable, with a strong load-bearing capacity of 120KGS.The base has a stable five leg support structure with a radius of 240MM, providing support for the entire office chair. 【Easy to install】This learning chair and office chair can be installed in just four steps, and the screw pack comes with installation tools, providing convenience for installing this chair.