Built with an effective, yet convenient folding design, this product can comfortably fit three smaller models of itself in a shirt pocket. Made with an anodized rust proof aluminum, for lasting protection; This lightweight product has heavy duty friction joints to maintain rigidity and precision. This Jumbo Radius Marker provides up to 40" in radius and comes included with a soapstone crayon, giving users the option to accommodate flat or round soapstone and pencils. 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.