| MaxForce | Maximum force it should be allowed to go. Set to zero to only allow stretching. |
| MaxLength | Maximum length it should be allowed to go |
| MinForce | Minimum force it should be allowed to go. |
| MinLength | Minimum length it should be allowed to go. At which point it acts a bit like a rod. |
| ReferenceMassobsolete | |
| SpringLinear | How springy and tight the joint will be |