These pebbles are preferred due to small size. These are polished black decorative stones, used in flower pots to hide soil. These stones are popularly used in Bonsai. After decoration with these stones, the plant looks awesome. Colour of stones is permanent and it will not fade. These stones are also used in fish aquariums. Additionally, these stones are also used in making projects of children and various craft activities. Moreover, the stones are used in Feng Shui, Reiki.