Zema's Dual Action Flea and Tick Collar for dogs is a 28" adjustable, fast-acting, long-lasting, double layer collar system. Contains four active ingredients to kill fleas and ticks for up to 6 months. The double layer, sustained-release system combines three active ingredients which have the insecticidal action of vapors and powder. This product is scented to provide a pleasant fragrance for pets and people. Active Ingredients: O-Isopropoxphenyl Methycarbamate 9% 3-Phenoxybenzyl D-CIS Trans 2 Dimethyl 2 Cyclopropanecarboxylate 3 3% N-Octyl Bicycloeheptene Dicarboximide 3% Inert Ingred. 85% Do not allow children to play with the collar. Not for use on puppies less than 12 weeks or age. Do NOT use on cats 079264521712Regular price: $6.50Sale price: $6.25, 2/$12.00, 3/$16.50 Bansect Flea & Tick collars for dogs Get The FREE Dog Bytes newsletter. Name: Email: