The flexi fit toilet trainer fits securely to most shapes and sizes of adult toilet seat its low profile and ergonomic design are perfect for giving boys and girls the confidence to potty train on the big toilet in comfortthe big toilet can be quite daunting for toddlers when potty training as they are high up off the ground and adult toilet seats are too wide to support them toilet training seats are designed to reduce the size of the toilet seat but adult toilet seats vary in size and most