Unlike conventional cold hard plastic toilet trainers, the soft warm feeling of the Bumbo® toilet trainer provides a sense of comfort and security, much needed when a toddler first starts using an adult toilet. Ergonomic: The Bumbo® toilet trainer is shaped to provide maximum security and comfort while teaching your toddler to use the toilet. Easy to Clean: Use a damp cloth and mild detergent to wipe off the Bumbo® toilet trainer after use. Age Range: The Bumbo® toilet trainer is recommended for babies from 18 month to 3 years old. Use & Care: We recommend that you start potty training only once your toddler is willing and able to use the potty. Be patient and never leave your child unattended while using the toilet trainer. Use on a regular sized toilet seat with maximum inner dimensions of 30 cm x 23 cm.  Do not use on elongated seats.  Refer to the diagram indicating the correct size and shape of the adult toilet seat to be used. Use a damp cloth and mild detergent to clean the toilet trainer. Never immerse the Bumbo® toilet trainer in water.