Security Patrol Sign : Warning - This Property Is... Part #:K-1107 18" x 24" Diamond Grade Reflective Sign, 80 mil Aluminum Verified Purchase
Security Patrol Sign : Notice - This Is A Security... Part #:K-4699 24" x 24" Engineer Grade Reflective Aluminum Sign, 80 mil Verified Purchase
Private Property Sign : Area Patrolled By Guard Dog Part #:K-6991 18" x 12" Engineer Grade Reflective Aluminum Sign Verified Purchase
Security Patrol Sign : Notice - This Is A Security... Part #:K-4699 10" x 10" HDPE Plastic Sign Verified Purchase
Commercial grade
These are quality signs. Commercial grade. Vibrant colors and the selection was great. I bought 4 and they really get the point across.