Typically my child who grows like a weed has grown out of their shoes in the middle of a deadly pandemic 
Clark's shoe measuring gauges are like rocking horse shit (unless you want to pay £50+ on eBay, which I do not).
Startrite do a printable measuring gauge but he's a toddler and I do not envisage that to be a fun and enjoyable family activity.
Does anyone know if the generic foot measuring gauges are compatible with Clark's shoes? In my mind I would assume they are, because a centimetre is a centimetre, but given that it's not particularly easy to do parcel returns etc. currently, I'd rather not balls it up and have to return packages etc.