This square outside parking permit can save your company from experiencing parking lot mishaps, like fighting for spaces or others using your lot! Applied outside for parking regulation, it measures 1 3/4" x 1 3/4", is made of white vinyl and features self-sticking permanent adhesive. It's perfect for use on bumpers, outside of windows or on the back of rearview mirrors. Numbering is available for extra security and control, and the sequence starts with 001 unless otherwise specified. There is no guarantee against skips or repeat numbers.