That are big ones!
Wow, these incredibly immense!
I cannot believe the enormity of those!
Oh wow, look at that! They are enormous!
Would you just look at how big that pieces!
Unbelievable! Those are staggeringly huge!
Those must be among the hugest ones I've ever seen!
That are monstrously large!
That are incredibly big that I am in awe!
Those redefine the word "massive!"
You won't imagine how enormous that!
Those make everything else look incredibly small in comparison!
That are truly gigantic!
That are undoubtedly the biggest ones I've ever seen!
I am astounded by the sheer enormity of that!
That earn the title of "astonishingly massive!"
Goodness, those are mind-bogglingly large!