A volcanic rock ball used for barbecue, aromatherapy, and spa

A volcanic rock ball used for barbecue, aromatherapy, and spa

The purpose of volcanic stone is: large volcanic stone for garden landscaping, volcanic stone for water treatment, volcanic stone for aquarium, volcanic stone for barbecue, soilless cultivation, seedling raising and meat planting are all 3-6mm, and the purpose of plate is for external wall and ground bedding (volcanic stone plate, basalt plate, pumice plate), etc;