The bad 1st: These marbles (LEFT) in image are not dark blue as can be seen compared to dark marbles (RIGHT) in image that I already owned. Also the two bags I got, marbles were not consistent in color and their size varied.The good. For me and for my taller vase the quantity was just right. Marble size, despite being variable, worked. And, as it turns out, the lighter color will work well with the flowers I have in mind.Depending on lighting, this can almost appear black and with a mirrored finish. If you view with the light source going through them, they are nice and light green, but if the light source is above (so what you see is reflective) they appear pretty mirrored and almost black. Also, marbles seemed to be two close but not identical sizes and two close but not identical shades of green. Curious.Not sure if all bags are like the two I received, but about 1 in 4 of mine were more clear than blue. Not complaining, we live in an imperfect world, and I have a place for the misfits. But, if you need ALL blue in a specific amount, buy extra.My wife wanted these for a project she's working on. It says they are round, which she needed, but the ones we got are flat on one side. They are pretty, I'll give them that, but before ordering make sure flat one's will work for you. You won't know what you're getting until they're delivered. I only gave them two stars because they are pretty, other than that, it's a crap shoot what you'll get.Beautiful! Consistent in size, color and shine. Beautiful shade of blue!Pretty much what I expected of small marbles. Non-toxic (I washed them before I but them in with my lucky bamboo - and no ill effects so far). Was a good quantity - I did not nee 1-5 pounds of them - Good Price - fast service -- I am jiggy with these little blue marblesso I do want to say that when I got the marbles, at least half of them had a metallic reflective tint over one side of them. Not sure what caused this, maybe heat from being delivered? Some of them did look almost melted... Anyway, the rest of the marbles were fine and should serve my purposes well.I intended to use only these marbles as substrate for my 2-gallon tank but they did not fully cover the entire bottom of my tank.