Product Description Johnson Level Tool has been the industry leader in spirit levels (bubble levels) for over 75 years. We continue to offer the finest levels, lasers, and all construction measuring, marking and layout tools. Johnson lasers utilize the innovative GreenBrite technology, emitting light 400% brighter than the traditional red laser levels. Because Johnson Level embraces the time and manpower-saving benefits of laser level technology, our laser customers are more efficient and more profitable on every job they perform. Johnson Level infuses the same durability, quality, and innovation into every product we make, from rotary laser levels to framing squares. When it says Johnson, it means JOB SITE TOUGH. From the Manufacturer These plumb bobs tie easily to string and line and are great for lining up and transferring points. They are essential tools for surveyors, excavation contractors and foundation contractors. Plumb bobs can be used to plumb walls and other objects or can be attached to select Johnson tripods to center the tripod perfectly over your reference point when using lasers and optical instruments. PLUMB BOB: This plumb bob is used by foundation contractors; excavation contractors and surveyors for lining up; transferring points or establishing a straight vertical or plumb line by connecting it with a string. PRACTICAL DESIGN: The plump bob tool has a practical design with a hardened steel tip to ensure accurate measurements. It also improves the work quality along with maximum efficiency and safety. QUALITY MATERIAL: This steel tip plumb bob features a brass-plated body that adds to its durability and great performance. It also has a lacquer finish; which protects it against corrosion while adding to the lifespan. EASY INSTALLATION: The brass plumb bob tool has a hardened steel tip and cap that can be removed and replaced easily to offer a quick installation of a string or line. PRODUCT SPECIFICATION: Johnson steel plumb bob weighs 32 oz. and is ideal for a variety of indoor and outdoor applications; including carpentry; masonry; surveying and fencing.