very very bad. please check the revews http://www.amazon.com/Kir
Check the review before give it to your pets
http://www.amazon.com/Kirkland-Signature-Resistant-6-Month-Control/product-reviews/B007RF1GH2
Check the review before give it to your pets
http://www.amazon.com/Kirkland-Signature-Resistant-6-Month-Control/product-reviews/B007RF1GH2