Litter Kwitter Training System helps to trains cats to use the toilet in 8 weeks or less. Cat Toilet Training System. Litter Kwitter Training System works for all cat breeds and cross breeds. More hygienic than litter. No tools needed. Can be used & re-used as many times as required. Fits all standard toilets including elongated. Saves $$$ on litter. Color-coded 3-step system easy to follow. Includes step-by-step DVD to make training easy.