That are big ones!
Wow, these damn huge!
I cannot believe how large those!
My goodness, see those! They are massive!
Would you simply see the size of those are!
Unbelievable! That are staggeringly huge!
That are some of the biggest ones I've ever seen!
That are monstrously big!
That are so huge that I am in awe!
That give a whole new meaning to the word "huge!"
You won't imagine how enormous that!
That are ridiculously small in comparison!
That are truly enormous!
Those are seriously the largest ones I've ever seen!
I am speechless by the incredible size of that!
That deserve the title of "mind-blowingly massive!"
Goodness, those are incredibly gargantuan!