[Material]T shaped swivel chair back support rod is made of quality iron material, ensuring durability and can be used for a long time. [Versatility]This T shaped bar part is ideal for repairing or upgrading your existing swivel chair, providing comfort and functionality. [Feature]Reclining backrest chair support rod is easy to install, fit for most standard swivel chairs. [Function]Control the back of the backrest and the lift of the seat cushion to meet the needs of different sitting postures. [Application]Suitable for most gaming, executive and office swivel chairs. NOTE: There is a dented in the crossbar, which is normal and does not affect use. Specification: Material: Iron Size Chart: 27cmx28cm/10.63inchx11.02inch Package Includes: 1 Piece T Shaped Swivel Chair Back Support Rod Note: Please allow slightly errors due to manual measurement and different monitors. There is a dented in the crossbar, which is normal and does not affect use.