These pebbles are about 0.3"(8mm) - 0.7" (18mm)

You can use them as soil toppings or you can use them on the bottom of the flower pot. 

These porous pebbles absorb moisture and allow for fantastic drainage of water from the roots of the plant.

Not only do they absorb moisture, they'll absorb any nutrient solution you choose to add

You will get your choice of half gallon (which is 2 quarts or 9 cups) or 1 gallon( which is 18 cups or 4 quarts) of These clay pebbles

I showed a picture of my own orchid with these clay pebbles. I personally think this is pretty.

if you order more, please let me know and you will get a discount.

Please let me know if you have any question.