The handle, called a "snath", would ordinarily be of a hardwood indigenous to the area of manufacture with small handholds, strategically placed, termed "nibs".
This was linked to a spring-loaded hinged flap which covered a handhold on the fuselage, just behind the cockpit.
There are also hand-holds on the seat backs for passengers to stand all the way down the aisles.
The soldiers can use ropes and equipment straps to provide handholds and snap links to secure themselves.
The bearing block (handhold) can be made of anything that is harder than the spindle.
In promenade-style partner dancing there is no leader or follower, and the couple dance side-by-side maintaining a connection with each other through a promenade handhold.
An inside handhold allows easy entry and exit.
Strategically placed chains, handholds, and ladders aid in the climb.