Once you have made a purchase, you are granted unlimited usage rights for the presets. You are free to use them for as long as you desire. However, it is advisable to create a backup of the preset files to ensure their safety in case of any unforeseen circumstances. Please note that sharing the preset files with others would violate the terms of use. The presets are intended for personal use only, and redistribution or sharing without proper authorization is not permitted. By respecting the terms of use, you help maintain the integrity of the product and support the efforts of the creators. If you have any questions regarding the terms of use or need further clarification, please feel free to ask.