NERI specialises in the production of hand-made and machine-made hollow chains in each carat and colour of gold. And in particular:

• bracelets
• machine-made and fancy chains
• hand-made hollow chains
• necklaces
• pendants

The large range of products includes personalized and modifiable items in comparison to the standard ones and items partly realized with machineries built in firm on purpose. Another NERI's peculiarity is that some chains are created with superlight materials studied for including lightness and strenght all in one object.

The technical particulars are high-level: see the lock deposited with international brevet in which rubies, diamonds, sapphires and zircons can be set and where the stone acts like zipper for the opening, able to withstand a traction 5 times more than the traditional locks.