Wishing for Jade Roller

Can you please give me the details of Jade Roller I am interested in Jade Roller
What type of jade or gemstone is used in your jade rollers, and do you source them from specific regions known for high-quality stones?
Can you provide information on the size and weight of your jade rollers? Are there different options available for various preferences?
Do your jade rollers have any specific handle designs or ergonomic features for ease of use and control during facial massages?
I want to know the prices for 19000 pcs
Thanks