From Big Cats To Pussy Cats, This Product Has Been Specially Developed To Make Worming Easy - Without The Bites And Scratches And Other Problems Associated With Trying To Give Tablets. Simply Apply The Solution To The Back Of Your Cat's Neck For Fast Effective Treatment. Clinically Proven, Spot On Dewormer Starts Working Almost Immediately And Is 100% Effective At Controlling The Most Common Worms Affecting Cats.