Centurion High Intensity Reflective Hard Hat Stickers for Concept, Vision and Reflex Helmets One set of Centurion High Intensity Reflective Stickers Meets specification requirements of EN 12899-1 Ra2 Fits Centurion helmets Concept, Vision, Vision Plus, Reflex and Reflex Plus Full set of reflective stickers, 2 front pieces, 2 side / rear pieces and one top piece.