Size is as-packaged, or the diameter of loose marbles. ("D" is the diameter of round items other than marbles.)
This assortment contains 100% choice multi-color marbles with no cheap and ugly Chinese-made filler! We guarantee you will be delighted with this mix - if you are not thrilled with the eye candy, we will buy it back! There are over 750 eye-appealing gems in this box!
Ships separately by 2-3 day flat rate mail anywhere in the US for just $6.99 ea. box! (we're sorry, but this charge cannot be reduced.)