-As a general rule, people can use balls which weight up to 10% of their total body weight. A kid who weighs 70 pounds can use a 7 pound ball, anything above that should be replaced by a lighter ball. -One must also assess his level of playing. There are different kinds of balls for different kinds of players. Arms Take one arm and raise it above your head. Then bend it at the elbow, while your opposite arm holds it in place. The pull should be felt in the muscles at the back of your arm. Do the same for the opposite arm with eight counts each. Back Hold out both arms in front of you with palms facing outward, link your fingers together and make a pushing action away from your body. Experts contend, however, that this kind of shot is not very successful in that it does not attempt to take full advantage of the dragging the power of the bowler. 2. Stroker With this kind of technique, the bowler relies more on precision than strength. This technique is characterized by employing the "by the book" style of playing that entails the proper execution of even movements, keeping square shoulders to the target all the way through the release of the ball, and maintaining an on-time move at the "foul line. Although it can be one of the best pins to buy, the company that produces it eventually sold its rights to Brunswick. The second type of pin is the Brunswick PBA gold pin. It weighs 3 lbs. 10 oz. and is much heavier than a regular pin. It features a colored PBA logo because these pins are standardized and are used only in tournaments set by the PBA. Since bowling history is colorful and full of twists and turns, researchers have discovered that the game is actually the very first sport that was discovered. Back in 5200 B.C. they found primitive balls and pins in Egyptian tombs. They also found Polynesian cultures that practiced the same sport and found lanes about 6 feet long. Shopping for a ball can present a bit of quandary, however. Here's what to consider in a bowling ball: Budget. Balls can get rather expensive. It's not a bad idea to set a budget before doing some serious shopping. Very inexpensive balls can roll in at about $50, but professional grade ones will cost in the hundreds or more.