features a hexagonal machined body to prevent rolling and accurate measurements. The practical design also improves work quality while increasing efficiency and . This hexagonal water pipe wave is made of high-quality steel for durability and excellent performance. It also features a - steel-plated ; extending its service life. Simply remove the cover to simply install the steel pipe wave tool on the sting or fishing line. You can also use it with a tripod to level them to the center while using different optical and laser instruments. Ideal for a variety of indoor and outdoor applications; including woodworking, masonry, surveying, and fencing. Colour:As Shown Material:steel Package Contents: 1set x plumb Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.