With its patent-pending design, Thundershirt's gentle, constant pressure has a dramatic calming effect for most Cats if anxious, fearful or over excited. Based on surveys completed by more than two thousand consumers, over 80% of Cats show significant improvement in symptoms when using Thundershirt. Thundershirt is already helping tens of thousands of Cats around the world, and is recommended by thousands of veterinary professionals and animal trainers. Thundershirt can used for the following symptoms- Fear of thunder Fear of fireworks Trips to the Vet Car travel Litter box problems Grooming General fearfulness and many more! Thundershirt offer a 100% satisfaction guarantee!