# Material

## Class Definition

```python
class Material(material_id: str, name: Optional[str] = None, density: Optional[float] = None, density_unit: Optional[str] = None, color: Optional[Vec3] = None)
```

*Source: product.py*

## Import Surface

- top-level: `from simplecadapi import Material`

## Description

Material definition assigned to a Part through `assign_material_rpart`.