The Amazon Basics Flea Tick Topical Treatment for Medium Dogs (23-44 lbs) is a spot-on treatment designed for adult dogs over 8 weeks of age. With a corn-free formula and EPA registration, this treatment is safe and effective in protecting your furry friends from pesky fleas and ticks. The product is easy to use and comes in a set of 6 tubes, providing long-lasting protection for your medium-sized canine companions. Made in the USA, this treatment is a reliable option for keeping your dogs healthy and happy.