Soldering net size

What size is the brass net that is part of the Soldering Iron Tip Cleaning Net ( 108331 ) sold here? Before buying a bunch, I’d like to assess how easy it will be to find refills, because I work in a school and they will get destroyed. It’s just a question of time.

Also, can anyone confirm what the housing is made of?

Hello qualmans,

The brass net dimensions are 7x4cm, but it is stretchy and expandable. The casing is made out of a metal as to not melt from the soldering iron heat. The package as a whole is 7,3 x 7,3 x 7,5cm

Hope this helps!