Used once at the end of last month, June 24, 2025. (No heat regeneration) Stored in a cool, dark place. I purchased three bags, and I'm offering two of them as I won't be using them. They originally contained 1 kg, but as you can see in the photo, I've put in a little extra. I disposed of the original bags, so I'll put the contents in Ziploc bags and include a copy of the instructions. To save on shipping costs, I'll send them as shown in the third photo. This is a reusable desiccant for dried flowers from Toyoda Kako. It can be regenerated using a pot or frying pan that is not used for cooking. I removed the silica gel using a strainer, but I may have missed some fine particles. Please understand this. It seems like it would be fun to try making dried flowers with your children during summer vacation ✨ If you have any questions, please feel free to ask in the comments. Thank you very much m(_ _)m