Hartz® Ultra Guard® Flea & Tick Collar for Cats & Kittens 7 Month Protection. Kills Fleas. Kills Ticks. Full Body Protection. Break-Away Collar. Water Resistant. Fresh Scent. Net Contents: 1 Collar, Net Wt. 0.53 OZ (15g) Purple collar. Read entire label before each use. Use only on cats. Hartz® and other trademarks are trademarks of The Hartz Mountain Corporation. For more information, Call our experts at 1-800-275-1414.