PC 9410™ High Strength, Rapid Setting Concrete Repair and Grouting System, 5 gal, Bottle Bucket Kit, Grey ORS NASCO Tinted lens reduces eye fatigue Tinted lens reduces eye fatigue and eye strain caused by blue light Available in a variety of lens options for indoor and outdoor use Rubberized eye seal provides exceptional protection against dust and other particles Adjustable headstrap improves fit and protection Can be fitted with an Rx prescription lens adapter while maintaining impact protection approval self adjusting rubber nose pad for comfort Feature integrated diopters on both the top and the bottom for vision help when looking both up and down These safety readers have a 7 base curve including wood and steel Summer and winter additives also available to aid cure times Known as Loctite® FIXMASTER® Magna Crete This 2 part epoxy repair system can be applied at virtually any temperature without shrinkage Is freeze thaw and de icing salt resistant Bonds to new and old concrete as well as most construction materials