Most of the rocks are approximately 2in./5cm. long, though a few are slightly larger or smaller. There are many kinds: any individual rock may be flat, round, triangular, rectangular, square-shaped, light, dark, multicolored, rough, smooth, porous, symmetrical, asymmetrical, any combination of some or all of the above, or something else entirely.
The rock I send to you will be a random choice determined by what I have available at the time of your order, and may or may not be one of the rocks pictured above - the pictures are meant to serve as examples.
The fairies are drawn with pastels, then sealed three times with light-fast acrylic sealant. Those I've made in the past as gifts for family and friends have proven to be surprisingly durable and long-lasting.