I wanted to applaud you guys for your brilliant invention. We have only had ours for a fortnight and it has saved two family days out from premature endings/unpleasant accidents.
If you have kids this is now an essential piece of kit. Ours now lives in the car and the children delight in saying it’s name out loud, continually actually.
Even I, as a 14 stone adult, have used it and quite comfy it was too.
R. Mackechnie and Family