The PLUMB-PRO® is manufactured from the finest material available. PLUMB-PRO® Super Shovel Fiberglass Handles have been the standard of the industry for over 60 years. Fiberglass encased in a proprietary resin deliver a super-duty handle, tough enough to carry the Super Shovel name. PLUMB-PRO® Super Shovel handles are unaffected by subzero temperatures, do not conduct heat or cold and are impervious to industrial chemicals. PLUMB-PRO® Super Shovel handles are also non-conductive and have a built in dielectric safety feature. All PLUMB-PRO® Super Shovels feature solid core fiberglass handles for strength, safety, and durability. PLUMB-PRO® Super Shovel non-slip handle design can be used in wet conditions where moisture-laden wood or tubular steel would have disastrous results. Smooth, resin rich PLUMB-PRO® Super Shovel handle surfaces protect users from splinters and resist UV deterioration. PLUMB-PRO® Super Shovel handles have a longer job site life expectancy since they are unaffected by moisture, fungus, termites or dry rot that destroy wood handles. All PLUMB-PRO® Super Shovel products are warranted against any and all defects in material or manufacturing.