Price is for 20 pieces. (Please comment if you would like to add more.) Size: Approximately 7.5mm-8mm x 7.5mm-8mm x 7.5mm-8mm, Hole approximately 2.5mm Weight: Approximately 0.25g per piece *Because the natural materials are dyed, the colors are not uniform, and each piece has a different color and texture. Also, please understand that there may be variations in pattern, cracks, slight distortions, and color differences. *Instant purchase OK! How about using them as parts for earrings, bracelets, necklaces, hairpins, or straps?