Design Concept

This keychain is designed in the shape of a heart, making it both a fashionable accessory and a functional item for identifying blood types.

Purpose

The keychain is ideal for attaching onto bags or keys, providing a useful identifier for emergency situations.

Printing Recommendations

Get the model file with the desired blood type. Use a layer height of 0.2mm. I've printed them in TPU, so they are flexible and don't break that easily.

Assembly Instructions

Simply attach the printed heart charm to the keyring through the pre-designed loop. No further assembly is required.