Keplin - Fully Adjustable Kids Potty Training Seat with Step Stool - Soft Padded Seat - Universal Fit for V/U/O-Shaped Toilets - Ages 1-14 - Easy to Assemble & Fold (Purple)Fully adjustable foot rest and height can be used from age 1 7 Soft padding on seat Universal design fits all toilets Great for toilet training with pee Cather for boys and girls Easy to assemble according our instruction and our Keplin potty toilet seat is suitable for v shaped, u shaped, o shaped toilets, not for square toilets and it is very easy to remove and fold up so adults can use the toilet too