Castors protection for Children Seilbahn

I have designed an rainprotection and a protection for the children so the cant grab into the rolls of the castors.

If you only want to use the rainprotection print the version without the oblong ;-)
then you have to use a cable tie and drill a whole through the castors to mount the rainprotection. If you use all parts no mount on the castors is neccessary.

The parts fit to this castors very well:
https://www.amazon.de/gp/product/B00O49ZJ8Q/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1