Review on Craft Rocks for Rock Painting: 20 Big Smooth Stones, 6 LB. White River Rocks, Painting Supplies for Adult & Kids by Emmanuel Pictorial

I was so happy when I ordered them and so disappointed when they arrived. I bought them to paint the rock garden they wanted. All of these stones were 2 inches or just over 2 inches from what I measured! There weren't any larger ones in this batch, and even more 3.5-inch models. They are very powdery and need to be washed before use. Not sure why they are like this, I don't think they are natural stones. They are not smooth. Therefore, if you want to use acrylic pins on it, they will break after a few times and this with slight pressure on the pins. Do yourself a favor, look elsewhere. I found sleek black ones that were actually what they advertised.