Product Description Item Number | 10121266MSA V-Gard Frame for MSA Slotted Cap Style Hard HatsThis frame works with any MSA slotted cap style hard hats and features our unique sloped design to help material slide off the frame and out of site. Can be used with MSA cap mounted earmuffs, half-mask respirators and other personal protective equipment. Stays securely on the cap, thanks to the stowable slot adapters that allow frames to work with or without MSA Cap mounted earmuffs. Sliding adjustment blades allow visor to work with most half-mask respirators. Unique V-shaped channels. Fits all slotted MSA caps.