The results are a well-fitting chair that helps to dramatically release spinal pressure. Your new office chair is perfect fit for your home, office, classroom, or anywhere you need a little extra support!This office chair is the best choice, not only can you needs.Product name: Office chairs, training chairsGas rod: SGS international certified pneumatic rodColor: yellow, black, whiteControl: handle control, multi-functionalBack: ergonomic chair backFive claws: high load-bearing injection molded nylonHandrail: one-time molding pouring, curve decompressionLumbar support: ergonomic supportFabric: Reinforced PU leatherSponge: High elastic memory foamParts: seamlessly bonded drop-resistant screwsPulley: Soft-pack PU silent wheelFive-star foot material: steel feetWhether it can be folded: NoWhether to lie: NoWhether it can be raised and lowered: YesWhether it can be stacked: NoArmrest type: fixed armrestnote:Contains only office chair, does not include other items1. For manual measurement, the size may be slightly different, please forgive me.2. Due to the difference in shooting light, there may be some chromatic aberration. Please refer to the actual product.3. The general delivery time is 15-25 days, please be patient.4. If you have any questions, you can contact me by e-mail, we will give you a satisfactory answer.