Premium 370 replacement headgear with adjustable ratchet suspension is compatible with a wide variety of Jackson Safety top welding helmets including: Halo X, HSL, Nitro, WH40, Smartiger and WH70 series (sold separately). Three-position slider allows welders to adjust the distance from the eyes to the lens. Crown strap adjustment allows the headgear to be raised or lowered for maximum comfort and performance. Large ratchet with soft rubber grip allows size adjustment without removing the helmet; Vertical lock-in eliminates helmet from creeping. Locks into a detent when lifted and keeps it in the upward position until manually lowered. Established in 1933, Jackson Safety has built a century long reputation for delivering the most innovative safety solutions in the welding and personal protective equipment industries. When it comes to providing safety solutions with long-lasting value, durability and comfort, Jackson Safety has set the standard. Whether the need is for welding protection in a steel fabrication environment, head protection on a construction site, or hearing protection at an airport, Jackson Safety provides the widest range of safety choices to meet the needs of every job and every worker.