Type a description for this product here... Spot-On Ecto-MAX Dog size L S, 3 x 3 ml prevents and effectively treats infestations with external parasites in the dog. Immediate action. Mode of Use: Apply the contents of a pipette directly to the dog's skin, between the homopayouts. It repeats every 15 days, depending on the weight of the dog. Harmless to animals. Indications: does not contain insecticides To be given only to animals For external use only Do not leave the children at hand Keep in place dry and cool