- For round elastic
| Normal type | Round type | Knot pass type | |
|---|---|---|---|
 |
 |
 |
|
| Composition | 2P or 3P | 3P | 3P |
| HM flow path | Triangular or straight | Round | Round |
| Knots through institutions | No | No | Yes |
- For flat elastic
| Normal type | Knot pass type | |
|---|---|---|
 |
|
|
| Composition | 2P | 2P |
| HM flow path | Triangular | Round |
| Knots through institutions | No | Yes |
※About knots through institutions