Those are big ones!
Wow, those incredibly colossal!
I cannot believe the size of that!
Oh wow, check out those! They are massive!
Would you just take a look at how big that are!
Unbelievable! That are absolutely massive!
That are some of the most enormous ones I've ever seen!
Those are monstrously big!
That are unbelievably enormous that I am in awe!
That redefine the word "huge!"
You won't believe how enormous those!
That make everything else look ridiculously small in comparison!
That are truly enormous!
Those are positively the biggest pieces I've ever seen!
I am astounded by how unbelievably huge that!
Those deserve the title of "mind-blowingly huge!"
Goodness, those are mind-bogglingly large!