Bob Martin Spot On Dewormer for Cats & Kittens is a hassle free way to worm your cat, without the bites, scratches and other problems that can arise from trying to give them a tablet. This fast action wormer begins work immediately in ridding your cat or kitten of tapeworms, and is recommended as part of a routine treatment every 3 months to ensure your cat stays worm free. The quickest and most effective treatment for your cat’s worms! Suitable for use on cats and weaned kittens weighing more than 1Kg only.