This SECO 32 oz (907 g) plumb bob is precision-machined from solid brass. It includes a hardened steel point. Each bob contains storage area for a spare point. Weighs 32 oz (907 g).

The 6 1/2-foot (2 m) Gammon Reel helps you set up and deploy a clean, accurate plumb. Simply draw the bob to the desired position and stop by applying finger pressure; a steel clock spring retracts the string back into the case. Weighs 0.11 lb (0.05 kg).

This SECO 24 oz (680 g) plumb bob is precision-machined from solid brass. It includes a hardened steel point. Each bob contains storage area for a spare point. Weighs 24 oz (680 g).

The 12-foot (3.7 m) Gammon Reel is a handy retracting plumb bob cord reel. It automatically rewinds when not in use. Weighs 0.20 lb (0.09 kg)

This SECO 18 oz (510 g) plumb bob is precision-machined from solid brass. It includes a hardened steel point. Each bob contains storage area for a spare point.

Replacement Point fits all SECO plumb bobs.

This SECO 16 oz (454 g) plumb bob is precision-machined from solid brass. It includes a hardened steel point. Each bob contains storage area for a spare point.