Most often used for longer-term ventilation, the flexible
flanges permit insertion through a smaller incision, stable positioning in the tympanic
membrane, and easy removal. Sterile. Single use.
Made of Silicone Elastomer: Extremely soft, compliant and
elastic material. It is easily manipulated, extremely lubricious, and allows vent
tubes to be easily compressed for insertion or removal. 100% certified medical
grade silicone resin. 
| 
   A: Inner Diameter  | 
  
   B: Inner Flange Diameter  | 
  
   C: Outer Flange Diameter  | 
  
   D: Inner Flange Distance  | 
  
   E: Total Length  | 
 
| 
   1.14mm  | 
  
   9.8mm  | 
  
   -  | 
  
   12mm  | 
  
   -  |