GAMP II - GOOD (Gnss Observations and prOducts Downloader) is a powerful and easy-to-use lightweight GNSS observations and product downloading toolkit, which is developed by the SASIN (SpAtial SurveyIng and Navigation) group at Shandong University of Science and Technology (SDUST). The current version is 1.6, which is more stable. Hence, we decide to make it available for global GNSS users, and we are convinced that more and more GNSS users will benefit from GAMP II - GOOD. The source codes of GAMP II - GOOD is now available at GitHub (https://github.com/zhouforme0318/GAMPII-GOOD). We dedicated to create a more powerful GNSS data downloading tool, which can allow every GNSSer to completely get rid of the trouble in GNSS data and product downloading.