Is there any 5x5x5 brand that has solid cubies?

Thank you

Don't the old Meffert's and Rubik's ones have solid pieces? I have both and their weight would certainly suggest so.

My Rubik's Wahn's are solid.

Thanks Tony. Can I have you weigh one? I got 1 5x5x5 here and it seems quite heavy. It weighs 258 grams (with stickers).
I need one more to make a build.

My scales are very poor but it seems about what you say. I have cut these up in the past and can confirm it is as solid as a 6x6x6 and possible a little heavier.

My Wahn weighs 306g and the Meffert's 308g.