It depends what you like in a tennis string but I personally like babolat revenge polyester string.
Babolar revenge polyester strings.
There is no 'best string'. Even professionals use different strings because different strings suit different needs.
the strings in a tennis racquet are simply called "strings".
Usually they don't. The only reason would be because you applied red stencil ink.
Tight strings give better accuracy. There is less bounce in the strings, so less trampoline effect, making your shot more accurate, but less powerful.
Strings
It depends on what you need personally for you. I personally like the Babolot strings, but because they are made of 100% Polyester I do half and half also called the hybrid. The hybrid has two types of strings; in my case the RMP blast and synthetic strings.
Two strings are needed to string a tennis racket. The length of the string is to be about 11 to 12 meters.
It is used to make racket plat
The green courts not the red ones
The head of a tennis racket is the entire section of the strings, and the part of the frame that surrounds the strings.
A tennis ball, when impacted, dissipates about 45% of the energy applied to it. This means that it only absorbs and returns 55% of that energy. That is why in the test standard for tennis balls, dropping it from 100 inches, it only rebounds 53 to 58 inches. It is returning that much energy. The strings of the racket, however, return 90% of the energy they are impacted with. So, when the tennis ball hits the strings and they stretch (absorb the energy), they will return 90% of that force in the return of the ball. When a ball hits strings with a higher tension, the force is exerted on the ball, instead of the strings, and the energy return is closer to the 55% range.