left to right: extension cross; extension t; extension elbow; extension line
(Inherits from bot part)
Light-weighted structural parts.
| Ext. Title | Ext. Cross | Ext. T | Ext. Elbow | Ext. Line |
|---|---|---|---|---|
| Connections | 6 | 5 | 4 | 2 |
| Mass | 0.3 | 0.3 | 0.3 | 0.3 |
| Dimensions | 3x3x1 | 3x2x1 | 2x2x1 | 3x1x1 |
| Restitution | 0.5 | 0.5 | 0.5 | 0.5 |
| Friction | 1 | 1 | 1 | 1 |