That are huge ones!
Wow, those damn enormous!
I cannot believe the size of those!
My goodness, look at that! They are gigantic!
Would you simply take a look at the size of those are!
Unbelievable! That are staggeringly huge!
Those are among the biggest ones I've ever seen!
That are monstrously large!
Those are extremely massive that I am in awe!
That give a whole new meaning to the word "colossal!"
You won't imagine the sheer size of those!
That are incredibly small in comparison!
Those are truly enormous!
Those are undoubtedly the largest pieces I've ever seen!
I am astounded by the sheer enormity of those!
Those deserve the title of "mind-blowingly gigantic!"
Oh my, that are mind-bogglingly large!