We are professionally processing and exporting hot and cold massage stones such as black basalt (lava stone ), blue pearl , white marble , jade , chakra stones and other sedimentary stones .Whole set or single pieces are both available .We also offer stone heaters , engraved spa hot rocks and river stones , engraved pocket stones .If you are interested in them , pls contact me at xmjademassage stone at gmail dot com .Regards,JadeLeeXiamen Jade Massage StoneTel:+86-592-8894202