Swivel connection allows the nozzle to pivot without twisting the hose & reducing the likelihood of kinking, increases ease of mobility, 1 turn adjustment of the nozzle head allows users to move confidently from jet to rinse, ergonomic design optimizes the location of controls so there's no straining to reach & make adjustments, fits snuggly in the hand, greater comfort & control, durable metal secures & reinforces the impact points & barrel.