1. : The product is made of PVC plastic material by die casting process, and has the characteristics of lifelike image, real operation, convenient disassembly, reasonable structure and durability. 2. Ligaments are semiflexible. Average size dog knee with femur, fibula, patella and tibia bones, lateral and medial meniscus, anterior and posterior cruciate ligaments, plus several more ligaments and tendons. 3. Functional Features: This model shows the anatomical features of the dog knee model, the anatomy is very standard. Helps students to carry out comprehensive teaching practices, effectively combine theory and practice, promote students' understanding and improve teaching quality. 4. Widely Used: It is applicable to clinical teaching, teaching and practical operation training of students in higher medical colleges, nursing colleges, vocational colleges, clinical hospitals and grassroots units