Plumb bob with string Made of high-carbon steel, offers superior hardness and strength. Plumb rust-resistant coating prevents corrosion, ensuring long-lasting durability for professional lineman tools and surveyor tools. The solid plumb bob line tool delivers accurate vertical measurements with a sleek, portable design. Perfect for construction, interior decorating, equipment installation, and woodworking-ideal as a string level tool or plumb line tool. Attach this carbon steel retractable plumb bob to any rope or string line level (includes a 5 meter string ) for quick setup. A must-have general tool for effortless plumb alignment on any job site. Essential for plumbers, carpenters, builders, plasterers, decorators, and masons. Use for foundation leveling, verticality detection, , and more-trusted by professionals. Includes 3 plumb bobs in different sizes: 4.41 oz (125 g), 7.05 oz (200 g), and 10.58 oz (300 g). A weight tolerance of ±5% is normal. This cost-effective set is suitable for both indoor and outdoor projects, ranging from DIY to professional lineman tools. Color: As shown Material: Steel Package Contents: 3*pcs plumb bob