Fourstage vascular model with detailed visualization of the progression from vascular hardening to thrombosis, helping users clearly understand disease development and sequence of events. Rotating design and compact size (16.5 x 13 cm) allow viewing the lesion process from multiple angles without repositioning, enhancing observation efficiency in teaching and demonstrations. Made of environmentally friendly PVC; solid and durable, safe and nontoxic; corrosionresistant and washable for easy cleaning; designed for long service life in busy educational or clinical settings. Compressionresistant, stable display base supports secure placement on classroom platforms or office desks, ensuring reliable visibility during lessons and presentations. Practical use scenarios: Medical and nursing education: ideal for lectures and handson demonstrations to illustrate vascular disease progression and treatment concepts. Patient education: a tangible teaching aid to help patients understand vascular conditions during consultations and informed consent discussions. Research and professional presentations: suitable for departmental demos, conferences, and collaborative discussions to visualize and communicate vascular pathology.