Frassie 28 Inch Office Gaming Chair Metal Base Replacement Part With 5, Black Premium steel material: The computer chair base is made of premium steel, sturdy and stable, with a load capacity of up to 2600 lbs. provides a strong and sturdy foundation for your chair Universal size: The office chair base with caster replace parts diameter is 28 inches, with standard center hole 2 inch (please measure the bottom diameter of the cylinder before purchase), universal caster socket size 11 mm x 22 mm. Applicable to almost all office chairs Silent rubber wheel: The chair wheel base set comes with 5 silent rubber casters that glide quietly and smoothly on any surface. Does not scratch the floor and does not curl hair when rolling Wider chair legs: The rolling chair base legs are 2 inch wide, wider than the regular 1.2 inch chair legs. It won't break compared to thinner legs that use less weight Service: If there is any problem with the home office chair base, we will solve it for you in time