Features: Engineered with heavy duty stainless steel and reinforced alloy construction, this sliding door hook latches securely lifts up to 50kg manhole covers and rolling shutters, featuring 30% enhanced pressure resistance for windproof stability in demanding environments. The corrosions resistant anodized aluminum body paired with rubberized grips ensures scratch less operations and 80% longer outdoor durability compared to plastic alternatives, requiring none tools for fast 3 minutes installation. Ideal for homeowners, commercial property managers, and maintenance professional seeking reliabled access solution for hard to open utility covers or overhead rolling doors in garages/storage facilities. Perfect for securing storm resistant rolling up doors during extreme weather, accessing underground meter boxes in gardens, or adjusting industrial grade rolling shutters at storefronts and warehouse entrances. Its vertical adjustment ranging accommodates varied door/window thicknesses, while the polished nonslip handle ergonomically converts between pulling and lifting motions for manhole covers, retractable gates, and basement access panels. Specifications: Component: alloy, plastic Length:Approx.50cm/19.68inch Properties: 500mm/0.5m Applicable scene: rolling door closed Package Includes: 1pcs Sliding Door Pulling Tool note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.