Standard Write-On Parking Permit Rearview Mirror Hang Tags By SmartSign | 3" x 5" Plastic, Pack Of 25 15 mil PVC Vinyl is our most popular white parking tag material. Handwrite or put a sticker on this tag. They are also printable on many laser or inkjet printers (but test with your model first). Write on permits using a permanent or dry-erase marker. Use with a label that you can print and design yourself. We recommend using a label 2"W x 3"H. Popular uses are for parking permits or door hangers. The PVC Vinyl is great for both indoor and outdoor use.