The SENTRY Plus for Dogs is a spot-on treatment designed to prevent fleas and ticks in dogs weighing between 45-88 pounds. This product includes 3 monthly treatments specifically formulated for senior dogs. It is EPA registered, allergen-free, and suitable for both adult and puppy dogs. Made with plastic material and weighing 0.13 pounds, it is a convenient solution for protecting your furry companion from pesky parasites.