Those are gigantic ones!
Wow, those absolutely colossal!
I cannot believe how large those!
My goodness, see that! They are gigantic!
Would you simply see how big those pieces!
Unbelievable! That are absolutely massive!
Those are some of the largest items I've ever seen!
That are monstrously big!
Those are so massive that I am in awe!
That give a whole new meaning to the word "huge!"
You won't imagine how enormous that!
Those make everything else look incredibly small in comparison!
That are absolutely ginormous!
That are seriously the largest ones I've ever seen!
I am astounded by how unbelievably huge those!
Those deserve the title of "astonishingly huge!"
Oh my, those are mind-bogglingly large!