Swivels or center tubes, as we call them, are the part ensuring that your chair can turn. Below options are conical in top and bottom for easy mounting on seat and base.

The swivels are conical in top and bottom. Inside the bottom is added an insert for screw mounting directly into the base - a solution ideal for flat bases/discs. 

A MEMO Swivel is a center tube with a special insert inside that ensures a chair to neatly turn back to start position after use. Below a few different options reach this functionality.

For chair models with full lift function - lifting the whole chair - we recommend using a swivel with gears. The gears will lock the swivel to ensure that the chair does not turn in lifted position.