Material: Made from brass, these NPT plug offer durability and rust resistance. Ideal for both residential and commercial plumbing projects, providing a secure fit in your piping system Practical: These pipe plug are ideal to use as removable plumbing connections due to their standardized taper thread. No need for welding, convenient and time-saving Easy Installation: This brass npt plug assortment kit is designed with a hex-drive socket for ease of install by hand or a wrench. Space saving design, direct replacement for other old, broken parts Versatile Size Options: This brass pipe plug socket set includes five different sizes, 1/8inch, 1/4inch, 1/2inch, 3/4inch, 3/8inch, offering ample supply for multiple projects or replacements Application: These NPT pipe plug are great for industrial use, widely applying to prevent leakage of gases, oil and fluids in your engine block, oil tank, drain pipe and more Specification: Material: Brass Size Chart: 13cmx9cmx2.5cm/5.12inchx3.54inchx0.98inch Package Includes: 10 Pieces?Brass NPT Plug Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.