Earl's Aluminum Allen Head Plug - 3/8 in NPT - Blue (2 Pack) 39000609 The RZ-56 includes minimal front

The RZ-56 includes minimal front venting and a plush removable/washable interior

The helmet can be used with or without ear cups

User Selectable Units Displayed In Fahrenheit or Celsius

Vent Window Cranks

Earl's Ano Tuff

Earl's Aluminum Allen Head Plug - 3/8 in NPT - Blue (2 Pack) 39000609 The RZ-56 includes minimal frontEarl's offers the most complete line of adapter fittings in the industry. In addition to the standard range of AN adapters in both aluminum and steel, over the past 30 years Earl's has designed and manufactured a wide selection of special adapter fittings to meet the needs of the racing industry. These specials include metric to AN, inverted flare to AN and power steering fittings. Product Description: Plug 3 8 in NPT Allen Head Aluminum Blue Anodized