BORIS Shower Commode Chair -- The Mobility Project

Available in five sizes and a range of seat widths to fit and support kids from birth into their teens.
A UV-protected, PE plastic-molded seat shell gives strong upper-body support, while the stainless steel chassis can be set into a tilted position to provide rest.
Gas cylinders smoothly tilt on demand, and the frame height adjusts easily to whatever toilet height is optimal.
Positioning accessories include head support, cushioned seat insert, a safety bar/tray, footplates and a splash guard that also performs as an abductor.