Objects
Chart
| Durability | Substance is… |
|---|---|
| 1 | Fragile (normal glass, thin wood or ceramic) |
| 2 | Breakable (sturdy glass, plywood, crockery) |
| 3 | Breakable but tough (interior door, safety glass, drywall, thin metal) |
| 4 | Strong and rigid |
| 5 | Strong and flexible |
| 6 | Solid |
| 7 | Solid and thick |
| 8 | Solid, thick, and reinforced |
| 9 | Thick, solid, and dense |
| 10 | Exceedingly strong and dense |
| 11+ | Damn near impenetrable |