That are big items!
Wow, those absolutely huge!
I cannot believe the enormity of those!
Oh wow, see those! They are massive!
Would you just take a look at the size of those pieces!
Unbelievable! That are incredibly gigantic!
Those must be among the most enormous ones I've ever seen!
That are monstrously big!
Those are so huge that I am in awe!
Those give a whole new meaning to the word "colossal!"
You won't imagine how enormous that!
Those make everything else look so small in comparison!
Those are absolutely ginormous!
Those are undoubtedly the largest ones I've ever seen!
I am astounded by the incredible size of that!
That earn the title of "mind-blowingly huge!"
Oh my, that are incredibly gargantuan!