A Question about Weaps

[palmtop]

http://www.bilder-hochladen.net/files/i8lh-b-6512.jpg

What are these Squares for ?

E: I forgott to ask what exactly the Ability Stat does. For my Ranger i can rais this and my guess is that the Tech Damage is raised, am i correct ?

[Somnia]

That's the number of special abilities attached to the weapon.

[UnLucky]

the number of special abilities it has

they'll be listed in the blank space on the lower portion of the item description box, and explained in more detail on the third tab

translation of the abilities, among other things, on this page: http://bumped.org/psublog/pso2-basics-buying-selling-equipping-grinding/#ability