That are gigantic pieces!
Wow, these incredibly enormous!
I cannot believe the size of that!
Oh wow, look at that! They are gigantic!
Would you just see the size of those are!
Unbelievable! Those are incredibly gigantic!
That are some of the most enormous items I've ever seen!
That are monstrously large!
Those are unbelievably enormous that I am in awe!
Those
redefine the word "huge!"
You won't imagine how enormous those!
That make everything else look ridiculously small in comparison!
Those are absolutely ginormous!
Those are undoubtedly the largest pieces I've ever seen!
I am speechless by the incredible size of those!
Those earn the title of "mind-blowingly gigantic!"
Goodness, those are absolutely enormous!