Took my 5-year-old out for a ride today and the front brake pipe / noodle (?) popped out of the folded steel retainer. The retainer (not sure of the correct name) was splayed open and definitely needs replacing. Had to do a temporary fix.
I would like to avoid a cheap / low quality replacement and purchase brakes of a standard I'd expect to see on my own bike, and in any case it's getting plenty of use as he can now easily do 15+ miles. As it's only a small bike (Frog 43 with tyres labelled 14 x 1.5") I'm unsure whether I should be looking for v-brakes specifically made for a kids bike. The same question would apply to the brake pads they may come with.
I'm guessing Shimano may have something suitable. I'm UK-based if anyone has a direct suggestion.
Update: measured arm length at 108 mm centre-to-centre.