It is good to have a few extra just in case. The SeeMySmileMask Protective Plastic Shields are much more durable than they used to be, but if you do crush or wrinkle it, it can make permanent creases. Please be careful with your shield.
In case something does happen, we do sell extras.
Please verify that it is the right kind to go with your mask.
NOTE: If you are ordering extra shields with your mask, then we will be sure to match them to your cloth core for you.