a rubber is only in Davis cup. A rubber is basically a match. If someone wins a match in Davis cup that means they won a rubber.
I know you can win a rubber in squash and Racquetball but not sure about what other sports
You can get those at hibbit sports.
thermo plastic rubber
A plimsoll, tacky or sneaker.
Rubbere shoes are usually more comfortable and suited for vigorous sports activities
Rubber can improve traction, and help prevent falls, improve speed, and provide some shock absorption.
Shoes with little rubber spikes on the bottom. They're used in sports like soccer
The term drives from contract bridge (the card game). There are two forms of bridge commonly played -- "duplicate", which is used in tournaments, and "rubber". A Rubber in rubber bridge consists of winning two out of three games, so if a match (or a series in sports) is tied at one-to-one, the "rubber" depends on winning that final game, hence the "rubber game" or "rubber match".
Go to your local Sports Authority, head to the Boy Scout section/camping section, find an egg holder, fill with boiling hot rubber, 4-5 hours later in the freezer you have a rubber egg
Things that use rubber (and also synthetic rubber) include: tires, erasers, rubber bands, seals, gaskets, rollers, machine belts, cushioning pads, electrical insulation, bouncing balls, sports balls, and tool grips.
I bought some from a sport shop like JJB or sports direct.
I am not sure where they sell them, but ino that they exist. my friend clara got some last month.