Niki Natural Defence is a line of products enriched with Neem oil, a natural component always used for cosmetic purposes. Neem Oil Collar for Cats - natural product for cats Niki Natural Defence is a line of products enriched with Neem oil, a natural component always used for cosmetic purposes. The soft rubber, pleasantly scented, makes it easy and particularly comfortable for the cat. The cat collar, thanks to its composition, does not cause harmful effects on animals. How to use the Neem oil cat collar Niki Natural Defence is suitable for all sizes; to get the correct size, simply cut it to the circumference of the animal's neck. Once opened, it lasts up to 6 weeks and is water-resistant. Warnings Avoid contact with eyes. Keep out of reach of children. It is not a toy. Use appropriately. Do not ingest. For external use only. For sale only in Europe