These pieces are ideal for use as coasters but can also be used in artwork projects or framed. Functional Art for your table top, these unique agate slices / coasters will make a statement wherever they are placed. Unique Design-Made of natural agate geodes, crystal geode quartz inside and polished outside. The edging of this agate slice is left natural to show off the natural beauty of the agate stone. Each and every slice is unique in shape and in size, and you will receive ones similar to the image shown. The colours may vary slightly from the photo you see due to lighting and your device / computer colours. Each slice is around 9cm – 10cm in diameter and around 0.5cm thick. All sizes are approximate as each slice will vary, each slice has 4 small transparent rubber pads on the back. Each slice weighs around 80-120g. Handwash recommended, not suitable for dishwasher. Not microwave safe. Agate Slices / Coasters Non Guilded, to protect any surface from staining. Great gift idea for Mothers Day, Birthdays, Housewarming, Christmas etc. See video: https://youtu.be/xZlQZHXD0go