The standard slotted frame works ideally with any MSA slotted helmet. The universal frame featuring a heavy duty, flat, rubber strap can be used with slotted and non-slotted MSA helmets. With the unique sloped frame design material slides off the frame and out of site. The optional debris control creates a tight seal between helmet and frame. The elevated temperature versions withstand temps up to 350 °F (176 °C). V-Gard® Faceshield Frame, Slotted Standard Grade, For Use With: MSA® Slotted Cap Style, Specifications Met: ANSI/ISEA Z87.1-2010, Plastic, Black, 6.5 x 9.72 x 2.56 in Dimensions