QUICK IDENTIFICATION: Allows for the immediate visibility of worker identification, business cards, or medical info directly on the helmet. EASY INSTALLATION: Designed to clip securely into the dedicated mounting slots found on the front or rear of all Petzl VERTEX and STRATO helmets (2019+ models). WEATHER PROTECTION: The robust polycarbonate cover protects inserted cards from rain, dust, and abrasion, ensuring text remains legible in harsh conditions. SECURE FIT: Once installed, the holder stays firmly in place, preventing accidental loss of ID during work at height or ground operations. LIGHTWEIGHT: Weighing only 45g, it adds negligible weight to the helmet while providing essential worksite compliance functionality.