About this item

• UNIVERSAL SIZE- The office chair base works perfectly with almost chairs in the market, the 2" (50 mm) center hole to fit standard 2" diameter gas lift cylinder
• HEAVY DUTY- 28" heavy duty polished metal office chair base (not Aluminum), making the base more solid and safe,made hold up 2200 lbs
• UNIVERSAL CASTERS- The diameter of 5 casters is 60 mm. The friction is small with noiseless function
• EASY INSTALLATION- It is extremely simple and convenient to install and operate as the picture
• AFTER SALES- Warranty period is 1 year. Please email to us via Amazon when the chair base is bends, cracks, or breaks, we will reply you and solution whithin 24 h