That are big ones!
Wow, those are huge!
I cannot believe the size of that!
My goodness, see that! They are gigantic!
Would you simply take a look at the size of that pieces!
Unbelievable! Those are staggeringly huge!
That must be some of the biggest items I've ever seen!
Those are monstrously big!
Those are incredibly enormous that I am in awe!
Those give a whole new meaning to the word "colossal!"
You won't comprehend the sheer size of that!
That make everything else look incredibly small in comparison!
Those are absolutely enormous!
Those are seriously the biggest ones I've ever seen!
I am speechless by the sheer enormity of those!
That deserve the title of "astonishingly huge!"
Oh my, that are incredibly gargantuan!