to keep sweat off of your hand and make the racket slippery.
tennis
Yes they do. A good wrist band can substitute.
"Yes, you can wear a tennis bracelet while playing tennis for some added support. It won't protect your wrist, but it will make it easier to hit the ball."
Its a "Wrist Strong" band, making fun of the lance Armstrong Livestrong bands. He wore it after he broke his wrist.
Length of wrist strap/Band circumference = 7 inches.
from the store
NO!
the question is not clear
At a store
a rakh
a lier
it cost 35