Sterile Blank Discs

• 50 discs, 1/4" diameter.
• Can be used to test a variety of antiseptics on bacteria in petri dishes.
  Soak a disc in an antiseptic and place it in an inoculated agar plate.
• Each disc will absorb exactly the same amount of liquid and leach
  the same amount of liquid into the agar.
  
• Instructions are included.

Sterile items are included and therefore this item is not returnable.