You can't check your weight for free. HowNet members can download resources. When writing a paper, they need to read a lot of literature. Membership is an option to save time, experience and money. HowNet didn't say that there is no free weight, so it can be charged at any time, and members can't check their weight for free. HowNet, also known as China HowNet or China Periodical Network, is the largest academic paper database and academic electronic resource integrator in China, with more than 95% officially published Chinese academic resources, which is unmatched by any other database.