Products not available in our current catalog


Today, plumb bobs remain one of the most important and widely used tools in the construction industry.

That is why RUBI has a selection of models which, without renouncing traditional use, guarantee proper operation and ensure product quality.

RUBI plumb bobs with magnets are made of bichromate steel to ensure good corrosion resistance, given the working conditions to which the product will be subjected.

The shape and weight of the RUBI plumb bobs with magnets faithfully retain the style of one of the most traditional models – a cylinder with one pointed end, as an indicator of the centre of gravity. Weighing 600 gr., RUBI plumb bobs with magnets are highly reliable and very resistant.

The dollies on the RUBI plumb bobs are made of wood, they are varnished for greater resistance for working in adverse conditions, and they feature a neodymium magnet for mounting to metal structures.

The 5 metre long line on the RUBI plumb bobs is made of high quality cotton to withstand on-site working conditions.

Plumb bobs use the law of gravity to indicate that the position of a construction element is truly vertical. The principle on which the operation of plumb bobs is based is very simple: the line suspended with the weight in its lower part should be vertical and perpendicular to any other level plane through which it passes.

Thanks to the work and cooperation of all the departments at the company and the great loyalty of our customers, scattered all around the world, we are aware of demands and specific needs of each market. For these reasons, we design and manufacture products and tools that are tailored to each type of market and that meet the needs of the professional.


  • Length of line:16,4 ft. (5 m).
  • With magnet dolly.

Products not available in our current catalog

References and models for Plumb bob

600 g Magnetic plumb bob
  • Ref. - 70968
  • EAN-13 - 8413797709681
  • Units per box - 6
  • card_giftcardPoints: 4
  • format_align_justify Show barcode
800 g Magnetic plumb bob
  • Ref. - 70969
  • EAN-13 - 8413797709698
  • Units per box - 6
  • format_align_justify Show barcode