18" x 18" Orange Mesh Safety Replacement Flag: - DOT Compliant Flag features a grommet in 2 corners for easy replacement to your existing poles. FMCSA require safety flags for oversize loads to be a minimum of 18" x 18" square in red or orange Orange vinyl coated mesh is strong and durable by allowing air & wind to pass through the flag to extend its life Size: 18" x 18" Color: Orange Material: Heavy duty, double vinyl coated mesh