1kg of Eggshells Washed thoroughly with water and dried. The inner membrane has been removed as much as possible, but some may remain. Eggshells are useful for soil improvement and calcium enrichment for vegetables in home gardens and gardening, as well as for use as bottom stones for pots and pumice. They improve drainage and prevent root rot. They can be used for a wide range of purposes, such as food for reptiles and birds, mosaic art materials, and crafts. If anyone is interested, thank you for your consideration.