Wrist strap for toddler

[NotSoThinLizzy]

Wee guy is 20 months and runs off at any chance he gets I've tried reins but he thinks it's great to use them as a swing. He knows not to run off as he looks back and runs off giggling like a maniac 😂 it's cute an all but it's getting tiresome. Think he'll understand the wrist strap idea?
Also when do they stop this?

Maybe a backpack one?

DS had a backpack one, a teddy bear rucksack and he absolutely loved it, he used to pack a few toys in it. They are less restraining than a wrist strap, didn’t get on with those at all. Can’t say when he will grow out of it, DS has SN so we used it until it didn’t fit him anymore.
DD wasn’t a runner, she wanted carrying constantly, couldn’t escape her if I tried!

Same as my DD wouldnt go anywhere she couldn't see me. DS has no fear. How long are the strap for a backpack one?

The wrist strap won't teach him boundaries though.
Try taking the buggy with you wherever you go. He can only come out of the buggy if he hold a hand or the side of the buggy. If he lets go he gets strapped back into the buggy.

This worked for my two. As he gets better at staying with you, you can then let him have a bit more freedom, like he can let go but if he runs - back in the buggy.

As he grows he can walk ahead but never out of site and he has to stop when told.

I've heard of injuries from the pressure of wrist straps if the child tries to bolt suddenly. I always used reins or little bags with straps with mine.