Most cat toilet training kits usually come with three color coded rings I.e.
, red, yellow and blue. The final ring used will be a white one, which should match your own toilet seat. You can place litter in the rings to start with -- the first ring will have only a small hole to expose the water in your toilet and each ring will expose more and more water to the cat. You can expect training to last 6 - 8 weeks, but it will be well worth it in the end.