My air fryers keep slowly moving backwards on my counter whenever I close the cooking basket. These simple stoppers keep them in place (as long as I don't “shove” the basket). I have quartz countertops and just used some 3M command strips to secure them in place.
One of my air fryers had clearance underneath to mostly “hide” the stop. The other one did not, so there are 2 variants - one that is less hidden and one that is more hidden.
The author marked this model as their own original creation.