Many wild animals in the world are scarce due to ecological and environmental changes. my country has also issued the "China Red Book of Endangered Animals", which aims to understand the status of endangered animals and raise people's awareness of protecting them. Endangered animals such as blue whales, Chinese alligators, and red foxes, these wild populations have a high chance of being extinct in the near future. The original intention of the small tail hook is derived from this. The user population is defined as a group of children. The tail elements of blue whales, Chinese alligators and red foxes are presented in daily household forms such as hooks to increase children’s understanding of animal knowledge and improve animal Environmental protection awareness.