Heavy-Duty .080, rustproof aluminum (just thicker than a US quarter)
3M Engineer grade reflective provides up to 500 foot of visibility at night
Signs are retroreflective
Signs lasts 10+ years of outdoor life
Pre-drilled holes for easy mounting
Rounded corners for safe handling
Compatable with Captain Safety
Protect your children at play with this 3M Engineer-Grade Reflective Aluminum Sign.Constructed of .080 thick, non-rusting aluminum, this sign will tolerate the abuses of prolonged outdoor exposure from sun, wind, and weather. The 3M Engineer-Grade Reflective ensures visibility up to 500 feet at night. All signs are municipal-grade and have rounded corners and predrilled holes for hassle-free installation.