Answer:
In buckles or lace, they help set the pace. The farther you go, the thinner they grow.
They have not flesh, nor feathers, nor scales, nor bone. Yet they have fingers and thumbs of their own. What are they?
What is as big as you are and yet does not weight anything?
What can burn the eyes, sting the mouth, yet be consumed?
What does a WW1 Trench, A Submarine and a Popular Phone App all have in common?
I go up and never come down no matter how hard you wish. As I get higher, more wrinkles crawl on to the face. What am I?