423 x 423 mm, rigid, retroreflective RA 1 / A, white-red For vehicles with excess width (pursuant to § 22.2 StVO, VwV § 29 VI 5c StVO) and for agriculture and forestry (pursuant to § 51c, § 72 StVO, DIN 11030). For use facing right at the front or facing left at the rear. Rear, left, right, front mounting Type Item Version Marking Width 423.0 mm Area of application Trucks, agriculture Main color white Length 423.0 mm Secondary color red