Adjusts 120 degree for 5 different cleaning angles, 1/4in plug inlet and 1/4 quick socket outlet, easy to fix between nozzle tip and wand. It will save you CONSIDERABLE time for cleaning hard-to-reach areas, and to reach up vehicles undercarriage, car chassis, automobile rims, swimming pool wallwater tank and ideal for gutter cleaning Undoubtedly this well-designed product will save you UNIMAGINABLE time in regular and special pressure cleaning job if you dislike bend down, squat down and stretch your arms for cleaning some inaccessible place and corner. This pivoting coupler will be always needed in anyway. 1st significant upgradeStainless steel 304 (SUS304) Pull Pin (safety lock)super hard and durable, just rotate it and enjoy the efficiency of the cleaning. Safety lock mechanism makes it safer and reliable to useNo worry about damage after 1000 times of pivoting and locking.Up to 5000psi for everyday and even commercial use. Brass main body, four seals on swivel core, and stainless steel inlet plug make it resistant to corrosion, high pressure and rusting. 2nd significant upgradeThe inlet plug has a ingenious filter to protect inner seals and valves from dirty and sands, save your cost of buying another nozzle and coupler filter. Brass filter body and Stainless steel (SUS304) filter mesh, extremely durable and strong! Protect the coupler and make it a longer lifetime! Product Passed drop test, 5000psi test and compressive resistance test, 1000 times of pivoting and locking test,worry-Free Package. Professional on Pressure Washer and Accessories. We Always Stand Firmly Behind This product and You.