Ruby Watir radio checkbox

i m trying to set a checkbox , with the .set? option it returns false but i m unable to set the checkbox.

<div class="">
<input name="radiostorage" id="zrs" value="2" type="radio">
<label for="zrs">Zone-redundant storage (ZRS)</label>
</div>

have tried with label(for: 'zrs').set .click .parent.click .parent.set, also directly trying to click on the input , but nothing happens, any clue on that

TIA