Here are some tips:
We want your bar stools to last as long as possible, so we recommend that you tighten screws within the first two weeks after assembly. For added safety, check the tightness of all screw every two months.
If a spill happens to the upholstered fabric seat, spot dry with a paper towel to absorb as much liquid as possible using a regular dab. If you still see stain when it dries, pull out grandma's tricks: use soda water and salt or better yet get a suitable upholstery cleaning solution.
You can always pre-treat the seat with a fabric & upholstery protector but keep in mind that polyester is already durable and resistant to most chemicals, stretching, wrinkling, mildew, and scratches.
Wipe up spills as they happen with a damp cloth and wipe dry. Avoid abrasive cleaning solutions, chemical solvents, strong detergents, cleaners with bleach, or furniture polish.