'You step over a comb plate to start & end each ride on one of these'
an escalator
UPPERS & DOWNERS: You step over a comb plate to start & end each ride on one of these
You step over a comb plate to start & end each ride on one of these
You step over a comb plate to start & end each ride on one of these
UPPERS & DOWNERS
an escalator
UPPERS & DOWNERS