1-1/2 x 12-Inch Black Steel Pipe Nipple The Plumber Choice steel pipes are made of the best quality steel material has a black finishing to provide greater rust resistance. You can use these for industrial retro wall mount iron pipe shelf.Highlights:Function with NPT threading at both sides, nipple acts as a connector between 2-pipes or fittingsDurable top quality steel construction for ultimate performance and corrosion resistanceBlack coating for greater rust protectionExtra protection shipped with plastic end cap to prevent damage during shippingCompliant meets ASTM and ANSI standardsDecorative uses can also be used for decorative purposes, to add an industrial or rustic look to room decor, furniture, shelving, etc. USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.