Designated dancers or dancers within a designated formation work as a unit  
  (similar to 
  As Couples 
  or 
  Tandem) 
  to perform the given call.
| 
 | 
 
 |   | 
 
 |   before  Solid-of-4 1/4 In |   |  after  |   
 | 
Notes:
- 
The Solid CONCEPT is also known as the
    As A Unit CONCEPT.
 - 
Dancers within the Solid unit must all be facing the
    same direction.
 - 
Dancers within the Solid unit maintain the relative distance
    between the other dancers within their unit throughout the entire
    execution of the call.
 - 
Do not allow any dancers to come between you and the other dancers
    within your Solid unit.