One is artificial frozen stone, 2*2*4.5 cm, one in 35 yuan (retail price: 56 yuan, FCL 10 yuan, 30~0 yuan, depending on your bargaining skills). This kind of artificial frozen stone looks good, has moderate hardness, does not stick or crack, and is quite easy to carve, especially suitable for novices. Just a question. If you soak in water for three to five days, the submerged part can be soaked down by one layer! It seems that the adhesive is water-soluble.

Then there are the ordinary Shoushan Stone, Changshi Stone and Qingtian Stone, which are a little more expensive. 1.5* 1.5*4 cm also has a piece of 35 yuan, but the quality is not good, there are nails, and the technology is poor and easy to crack, which is not suitable for novices.