handrail
US /ˈhænd.reɪl/
UK /ˈhænd.reɪl/

1.
a rail fixed to a wall or banister for people to hold on to for support
:
•
Please hold onto the handrail when going down the stairs.
•
The old wooden handrail was smooth from years of use.
a rail fixed to a wall or banister for people to hold on to for support