Bullard Front Brim Hard Hat, Type 1, Class E, Pinlock (4-Point) (White, Series 51)Hard Hat, ANSI Classification Type 1, Class E, Head Protection Style Front Brim, Head Protection Color White, Head Protection Graphics No Graphics, Fits Hat Size 6 1 2 to 8, Head Protection Material Polyethylene, Head Protection Venting No, High Visibility No, Standards ANSI Z89. 1 2009, Series S51 Key Features Head Protection Style Front Brim Head Protection Material Polyethylene Fits Hat Size 6 1 2" to 8" Series S51 Suspension Adjustment Type Pinlock