That are huge pieces!
Wow, these damn huge!
I cannot believe how large that!
My goodness, see those! They are gigantic!
Would you just look at the size of that pieces!
Unbelievable! That are staggeringly huge!
Those are among the largest items I've ever seen!
That are monstrously big!
Those are so huge that I am in awe!
That redefine the word "colossal!"
You won't comprehend how enormous that!
That make everything else look so small in comparison!
That are truly ginormous!
Those are undoubtedly the biggest pieces I've ever seen!
I am speechless by the sheer enormity of those!
Those deserve the title of "mind-blowingly huge!"
Oh my, those are incredibly gargantuan!