expression, i-adjective
out of reach of children; childproof
Fixed expression used as a prenominal modifier, often in safety contexts. Literally 'children's hands cannot reach', it describes places or objects kept safely away from children.
薬は子供の手の届かない場所に保管してください。
Please store medicine in a place out of reach of children.
子供の手
I put it on a high shelf out of children's reach.