ESS Snap-on/Snap-off Helmet Mounting Brackets for X-Tricator & Innerzone Series goggles. These Snap-on/Snap-off mounting brackets (ESS Helmet Mounting Brackets 7400251) attach to the brim of nearly any helmet no drilling required. Once installed the ESS goggle straps can snap on and off of the helmet allowing the user to store the ESS goggles on the front or rear of the helmet or store the Glasses Accessories in a pocket when not being worn. This system is ideal for use in conjunction with faceshields or flipdowns. Key Features of ESS Snap-on/Snap-off Helmet Mounting Brackets 740-0251 : NFPA Compliant 2-Piece Strap System ESS Snap-on/Snap-off Helmet Mounting Brackets 740-0251 is compatable with: ESS X-Tricator Goggles 740-0287 ESS Innerzone 2 Goggles 740-0268 ESS Innerzone 2 Goggles w/ Nomex HeatSleeve 740-0269 Specifications for ESS Snap-on/Snap-off Helmet Mounting Brackets 740-0251 for X-Tricator & Innerzone Series goggles: Manufacturer: ESS Color: Black