Heavy Duty Office Chair Base Square Lift Tray Gaming Accessories Swivel Plate Parts Chassis Iron

Made of good and wear-resistant material for a long time and durable use. Office Chair Base has a simple design, but very practical in use, giving you a good using experience. Universal standards size is suitable for most office stool chairs, computers and desk chairs. Lift freely big extensions went up and down smoothly and noiselessly, very convenient and practical. Chair Swivel Base has an excellent workmanship, which is sturdy and safe, and you can use it with confidence.