Bracket features expandable rubber tensioner – self adjusts. Dielectric – made entirely of non-conductive materials. Three positive lock positions: down, 45 and 90 degrees up. Fits most non-slotted cap style or full brim hard hats. Designed for use where protective goggles must be worn with a full brim or cap style safety hard hat. Installs quickly and easily, no special tools required. Founded in 1923, Sellstrom Manufacturing Co., is one of the oldest American brands of safety products. From safety goggles to face shields and more, our long history in pioneering industry-leading personal protective products means our equipment is designed with your safety and productivity in mind. Today, we are synonymous with the best in head, eye, face, hearing, knee and welding protective products that deliver safety, productivity, comfort and peace of mind. d.