Magnetic Plum Bob, 15 oz Plum Bob with 19.7 ft chain, Auto retractable, adjustable for construction, decorating, woodworking, and carpentry tools, Pin/nail attachment, quickly stabilizes

Automatic Retractable Chain: Plum Bob comes with a 19.69-foot (6 m) nylon chain, which is wear- and break-resistant and wound on a compact spool. It retracts automatically, making it easy to store and transport. The chain can accommodate leads weighing from 5 oz to 16 oz, providing flexibility for various applications.
High-Quality Lead Bob: Made Made of carbon steel, the 14.89 oz (422 g) lead bob can quickly maintain and stabilize balance, ensuring accurate vertical testing, while the overall lead bob weighs 19.26 oz (546 g), lightweight yet robust for on-site use.
Multiple mounting methods: ① A magnet block allows the lead bob to securely attach to metal surfaces; ② A positioning pin for gluing into wood, plaster, gypsum, or cement walls; ③ A hole for hanging the lead bob on a nail or pin.
Safety design: The lead bob's positioning pin can be switched to protrude or conceal. the interior, and the switch button can be securely locked.
Adjustable measuring distance: this plumb bob allows users to adjust the measuring distance, ideal for vertical testing during wall construction on building sites, essential for hanging pictures, mirrors, and other decorative items in decorating projects, helping carpenters to accurately align and install cabinets, shelves, and other wooden structures.