About this item 【Cost-Effective Pest Solutions】Flea & tick collar for dogs provides prevention and treatment in one step, halting the flea reproductive cycle, equipped with 2 insect repellent collars and flea combs, save you money and efficiently solve your pest problem. 【Safe and Natural Treatment Collars】Flea collar for dogs uses advanced technology, Using 100% plant based insecticidal compounds as active ingredients to refine essential plant oils into a PVC carrier to reduce chemical irritation. This dogs flea collar is an odorless, non-greasy alternative to topical treatments. 【Naturally Effective Plant-Based Formula】dog flea collars contain the vet-quality active ingredients deltamethrin without containing either DEET or Pyrethroids, dog flea and tick collar protects dogs from annoying or sometimes dangerous biting insects naturally, safely and effectively. 【Months Long-Lasting Protection】Flea and tick prevention collar for dogs is made with non-allergic soft thermoplastic rubber. The natural active ingredients are built into the dog tick collar material during the polymer melt and slowly release during wearing, therefore providing the most enduring protection for dogs. 【Flexible & Adjustable to Fit All Pets】Dog flea collar was made to suit all pets. With the adjustable collar length 25.59 inches/65 cm, it can be used on both dogs of all ages and sizes, from a 3 month old dogs to a full-size. All you need to do is to buckle up and remove the extra length.