That are huge ones!
Wow, those are immense!
I cannot believe the enormity of those!
Oh wow, see that! They are massive!
Would you just see how big that are!
Unbelievable! Those are absolutely massive!
That are some of the largest ones I've ever seen!
Those are monstrously big!
That are so huge that I am in awe!
Those give a whole new meaning to the word "huge!"
You won't imagine how enormous those!
Those are ridiculously small in comparison!
That are truly ginormous!
That are positively the largest pieces I've ever seen!
I am speechless by the incredible size of those!
Those earn the title of "astonishingly gigantic!"
Goodness, those are incredibly gargantuan!