If the pinnns ever get dusty or otherwise dirty (depending on the application) you can clean them very easily. And this is how:
Option 1: Vacuum Cleaner
The fastest way: Many suction tubes fit perfectly over the pinnns. So you don't need to twist them off from the base plate and save a lot of time.
Option 2: Hand Wash
Simply twist off the pinnns out of the base plate (here your kids will enjoy helping, for sure) and hand wash them like delicates.
Option 3: Washing Machine
Twist off all pinnns from the wall mount and put them in a washing bag. Then wash them in your machine's delicate washing program. (Note: Please do not put them in the dryer, but this is not necessary because the foam dries quickly in the air.)