This is a pet-food tray made of firm but flexible ABS plastic (1/16″ thick). It’s available in Walmats’ pet dept. for under $5.00. It’s easy to store under the table and won’t damage the Naugahyde.
If you or your staff simply prefer not to have every patient remove their shoes (or forget) and fabric-covers seem ineffective and difficult to clean, this may be worth a $5.00 investment.
Additionally we find some patients get the heel of there shoe into the face-opening…the tray eliminates that as well.