Details  Alloy Steel Cover: It can effectively prevent falling and safeguard the product in good condition for a long time. Anti-slip Nuts: Its nuts are treated with anti-slip treatment to provide more stable and safer use. Application It can be used in most industries including factories, farms, garages, warehouses, shipbuilding, transportation, construction sites, workshops, and mines. Specification Material: Alloy Steel, G80 Manganese Steel Color: Blue Process: Heat Treated, Black Oxidized, Hardened and Forged Chain Diameter: 6mm/0.24in Total Length of Chain: 4m/13.12ft Available Length: 3.7m/12.14ft Lifting Height: 4m/13.12ft Test Load: 1.25kn Minimum Distance Between Two Hooks: 27cm/10.63in Tensile Force at Full Load: 0.309n Lifting Capacity: 1000kg/2204.6 lbs Product Size: 15*13*16cm/5.91*5.12*6.3 in Package Size: 27.5*17.5*16cm/10.8*6.9*6.3in Gross Weight: 14.3kg/31.53 lbs Package Included 1* Chain Hoist 1* Test Certificate 1* English Instruction Manual Notes  1.Please check the style and size before purchasing. 2.Please note that while the total chain length of our hoists is 13.12 feet, the usable effective length is 12.14 feet. 3.Please read the instruction manual completely before installation and use, and pay particular attention to the safety instructions included. 4.It is forbidden to use two or more hoists to lift a heavy object at the same time. 5.The lifting weight must not exceed the specified lifting capacity of the hand chain hoist. It is strictly forbidden to hang heavy objects on the tip of the hook or to tie up heavy objects with lifting chains. 6.The lifting and lowering of heavy objects must not exceed the limits of the upward and downward strokes. 7.Please do not pull heavy objects diagonally or use them horizontally. 8.It is forbidden to use the chain when it is twisted. It is strictly prohibited for people to work or walk under the lifted weight.