Those are big pieces!
Wow, these are colossal!
I cannot believe how large that!
Whoa, see those! They are gigantic!
Would you simply take a look at the size of those pieces!
Unbelievable! Those are incredibly gigantic!
That are among the biggest items I've ever seen!
Those are monstrously large!
That are extremely big that I am in awe!
Those give a whole new meaning to the word "colossal!"
You won't comprehend the sheer size of those!
Those make everything else look incredibly small in comparison!
That are truly gigantic!
That are positively the largest ones I've ever seen!
I am astounded by the sheer enormity of those!
Those
earn the title of "astonishingly massive!"
Goodness, those are mind-bogglingly large!