hand banisters扶手栏杆
wooden banisters实木楼梯扶手
N-COUNT（可数名词） A banister is a rail supported by posts and fixed along the side of a staircase. The plural banisters can be used to refer to one of these rails. (楼梯)扶手; 栏杆
I still remember sliding down the banisters.
我仍能记起从楼梯扶手上滑下的事。