Sno-Knife Roof Snow Removal Tool Rake lets you easily loosen and slide snow off roof with no heavy lifting or pulling. Just slide the Sno-Knife under the snow and let gravity do the work. Lightens the heavy snow load and helps prevent ice dams. Blade Material Poly, Common Usage Snow removal, Handle Adjustable Yes, Handle Length in. 60, Weight lbs. 2.4, Handle Material Aluminum, Includes Foam comfort grip. Lightweight Sno-Knife head weighs just 2.4 lbs. Unique leading edge design rides over shingles without damage No bulky frame to push through snow Works on shingles, shakes, metal or tile roofs Works on any snow, even drifted snow Slide the Sno-Knife under surface and let snow slide easily off roof. Model Number: SK-P4. UPC: 083523800012.