Jiansheng Educational Recording and Broadcasting Chair is designed with self-locking mute universal wheels; the writing board can be retracted and folded downward; the integrated ergonomics has a hand rest backboard; the writing board can be rotated 360 degrees; the water cup is placed under the writing board The bottom storage tray has a large capacity and can strengthen the anti-fixation; the 4-claw design is stable and durable.