Quick Coupler Bracket, 965 kg, works in forward and reverse, twin pivoting blades, Greased for life, low maintenance design,Induction hardened pins, permanently sealed, self-lubricated bushes and dirt seals. QuadRod Linkage; All joints are lifetime sealed, lubricated and maintenance free, with no greasing required. Retracting wheels, Adjustable hitch plate, Twin parabolic mirrors, Graduated, galvanized laminated laser poles: