Features: This anatomical heart keychain features a highly detailed 3D printed design, showcasing accurate cardiac structures for education and anatomical study reference. Crafted from ABS plastic, this lightweight 20g accessory combines scientific precise with everyday practicality through its integrated keyring attachment. Great for students, healthcare professionals, and biology enthusiasts seeking portable anatomical models for quick reference during commutes or clinical rotation. Perfect for classroom demonstrations, laboratory study , or as a conversation starting accessory during conferences and science themed event. An exceptional educational keychain accessory that bridges academic learning with functional design, serving both as a practical study tool and unique collectible for anatomy lovers. Specifications: Material: alloy,abs Process: Fine polishing and polishing Parameters: Heart model design, realistic details presentation Size: Total length 7.5cm/2.95inch Practicality: Can be given as a keychain, or as a decoration or gift Use scenarios: education, health awareness publicity, personalized decoration Package Includes: 1 Piece Heart Model Keychain note: Avoid contact with strong acid and alkali environments to prevent oxidation and damage. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.