3M Full-Brim Non-Vented Hard Hat with Ratchet Adjustment,CHH-FB-R-W6-PSGeneral Information Brand 3M Hard Hat Type Type I Product Type Full Brim Hard Hat Suspension Type 4 Point Ratchet Country Of Origin United States Sold As Each California Residents Proposition 65 Warning Dimensions and Specifications Overall Height (Imperial) 7 in Overall Height (Metric) 17. 78 cm Overall Length (Imperial) 11 in Overall Length (Metric) 27. 94 cm Overall Width (Imperial) 8. 5 in Overall Width (Metric) 21. 59 cm Overall Length Imperial