Price listed is for each ounce of stones. This is a mixed lot of acrylic flat back stones. There is a large variety in each ounce! Mixed in this bag are round stones ranging from 11mm to 32mm. Some of these will have smooth flat back, some will be partially drilled and some will have concave backs with a partially drilled pad. The colors will vary, but nearly all have a pearl finish. The sample ounce pulled had about 20 stones in it, though we cannot guarantee the number of stones you will receive, only the weight.