Those are big ones!
Wow, those are huge!
I cannot believe the size of those!
Oh wow, see that! They are massive!
Would you just see the size of those are!
Unbelievable! Those are staggeringly huge!
Those must be among the largest items I've ever seen!
That are monstrously large!
Those are extremely big that I am in awe!
That redefine the word
"colossal!"
You won't believe how enormous those!
Those make everything else look incredibly small in comparison!
That are absolutely ginormous!
That are seriously the biggest ones I've ever seen!
I am speechless by how unbelievably huge that!
Those earn the title of "astonishingly massive!"
Oh my, that are mind-bogglingly large!