Residents Only Reserved Parking, 12&rdquo;x18&rdquo; commercial sign. Aluminum w/ 3M Hi Prismatic Sheeting. Reflects like a search light. Durable and won&rsquo;t rust. Installs anywhere. Protect parking for residents Commercial Quality. Large 12"x 18" aluminum sign 3M Hi Prismatic Reflective Sheeting. Reflects 200 yards Durable, won't rust. This is not a flimsy plastic sign Installs anywhere, on posts, buildings, walls Made in the USA