https://www.acehardware.com/departments/automotive-rv-and-marine/recreational-vehicle-parts-and-accessories/interior-rv-accessories/8499113
Camco Adjustable Step Stool 1 pk Mfr# 43676 - Ace Hardware
Maximum strength with minimum storage space. Sturdy 19 x 14.5 inch platform with grip tape for a secure step. Legs fold out quickly and snap into place....
adjustable step stoolace hardwarecamcopkmfr
https://envictum.com/potty-training-seat-with-step-stool-ladder-for-toddlers-adjustable-non-slip/
Potty Training Seat with Step Stool Ladder for Toddlers, Adjustable & Non-Slip
potty training seatstep stoolfor toddlersnon slipladder