For best results, use early in the season before fleas are seen, and at least one week before your dog is likely to be exposed to fleas and ticks. Suitable for dogs from 7 weeks of age. EASY TO FIT AND ADJUST: Simply fit the flexible black collar around your dog’s neck, slide the free end through the grey buckle, leaving enough room to insert two fingers between the collar and the dog’s neck, Once fitted the collar can always be adjusted.
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