Help your feline friend say good riddance to bothersome pests with TevraPet ProAct Flea & Tick Cat Collars! Purr-fect for kitties ages six months and up, the collars feature a unique blend of botanical oils to help repel fleas and ticks for up to four months and also repel annoying mosquitoes. You can rest easy knowing the collars are phthalate-free and PVC-free, and they’re safe to use around children and other pets. They also include a breakaway safety feature.