These are natural maifan stones. You can use them as mix or soil topping for bonsai or succulent. It not only looks good but also there are a lot of benefits for your plant. Maifan stones are widely used in Chinese medicine and in water treatment. 1. It contains minerals good for your plants. 2. Increase the water activity because of its high biological activity. 3. Purifying your water by absorbing bacteria and absorbing heavy metals. 4. It is porous. This will let the root of your plants breathe well. There are three sizes: small size is about 0.04in-0.12in (1mm-3mm), medium size is about 0.12in-0.2in (3mm-5mm), large one is about 0.14in-0.23in (4mm-6mm). I will ship the maifan stone in a clean ziploc bag. The first picture is the real picture taken by me. The 2nd picture is an example that I used maifan stone as succulent top soil. Please let me know if you have any question.
