I really love the look of these lamps but they were advertised as 'fillable' which they diffinitely are not. The 'jar' portion still has the original glass bottom so no filling it there. I was told the top would screw off, nope, no threading and it's glued in place. Reguardless, if the top could be taken off you would have less than a 1" opening to 'fill' it, what can you put in there than is less than an inch wide? Still, I bought it for the look which I like, but it would have been great to be able to fill it for differing looks.