The second point of contact between the rider and the bike is the handlebar grips. A good set of grips can stop pins & needles or numbness of the hands. Great for adding a flash of colour to a monochrome bike.
"And I would walk 804.672km, and I would walk 804.672km more."
There are three points of contact between the cyclist and the bicycle.
One is the grips on the handlebars, another is the pedals and the last being the seat/saddle. If set up correctly these make the bike more pleasant to ride.