Compact knottying training model designed for teaching, observation, and selfevaluation of operative technique Key benefits Realistic tension control: Magnetic system recreates adjustable tissue tension for repeatable knotting practice. Vascular simulation: Parallel elastic strips mimic blood vessel behavior to add depth and realism to ties. Multiple knotting spaces: Three types of cylinders create varied working cavities and angles for versatile training scenarios. Clear observation: Transparent plexiglass construction allows instructors and trainees to watch technique and assess hand movements. Portable and spacesaving: Base plate measures 20*20CM/7.87*7.87in with a height of 19CM/7.48in for easy handling, transport, and storage. How it solves common training needs Provides consistent, repeatable conditions so learners can focus on technique rather than setup. Creates a range of deep structure geometries to practice knot placement in confined spaces. Enhances visual feedback during instruction and selfreview thanks to the clear material and open design. Suitable applications Classroom and skills labs: Instructors can demonstrate knotting approaches and students can practice under direct observation. Individual practice: Trainees can use the model for focused repetition and selfassessment of manual technique. Simulation sessions: Incorporate the model into structured training scenarios that require different depths and vessel simulations. Material and care Constructed from transparent plexiglass for visibility and durability. Compact footprint supports easy storage and transport. This model is intended for knottying training, observation, and practice of operative technique and provides a flexible platform for a variety of deep structure knotting exercises.