I'm going to buy colored contact lenses, but I don't have a prescription. What would I put as my prescription?
  
  They have:
  
  +04.00
  +03.75
  +03.50
  +03.25
  +03.00
  +02.75
  +02.50
  +02.25
  +02.00
  +01.75
  +01.50
  +01.25
  +01.00
  +00.75
  +00.50
  +00.25
  
  +00.00
  
  -00.25
  -00.50
  -00.75
  -01.00
  -01.25
  -01.50
  -01.75
  -02.00
  -02.25
  -02.50
  -02.75
  -03.00
  -03.25
  -03.50
  -03.75
  -04.00
  -04.25
  -04.50
  -04.75
  -05.00
  -05.25
  -05.50
  -05.75
  -06.00
  
  I was thinking 00.00, but I didn't want to pick the wrong one.
  Read more: What power should I put for contact lenses?