Kills fleas and ticks including those carrying lyme disease kills flea eggs to prevent reinfesations. 8 Month Flea Protection!

Unique Feature:  This collar is designed to stretch under the weight of an average sized adult cat. It helps the cat to free itself or "breakaway" if the collar gets snagged on a fixed object. If the collar is fitted improperly, so that it is loose enough for a cat to work the collar over its leg or jaw, this release feature may not stretch adequately to allow the extra room necessary for the cat to free itself.

To minimize flea infestation, use appropriate products to: Treat the pet; Treat the indoor environment, especially where pets spend time resting; Treat the outdoor environment when necessary.