Bar stools like this photo, only use a Flat Bar Stool Swivel

Bar stools with a back may have either a Flat or Tilted Bar Stool swivel
Some tilted swivels have "FRONT" and/or "Top" stamped into the metal, but not all.

So how do you know whether your bar stool seat swivel is tilted? Choose either method

• Measure at front and rear from under the seat to the floor. If front is higher, it is a Tilted Bar Stool Swivel
  
• With the seat or swivel removed, note if both steel plates (all four sides) are parallel to each other. If they are
  not parallel, it is a Tilted Bar Stool Swivel.