The one tool for common faucet installations and sink strainers with unique cubed insert provides a variety of common nut sizes.Ideal for most common 2, 3, 4, and 6 tab mounting nuts.Short body for clearance in tight spaces and open slot style allows foreasy access over existing supply line. Wrench for tight shut-off valves. Bubble level ruler is widely used in many occasions, which can let you often used items adjustment more convenient and more accurate, better positioning your life and space