A bowling ball consists of a coverstock, filler material, and core. Different bowling balls are made of different materials that determine their performance and attributes, such as hook potential, flare, rev rate, balance, strength, strikes, grip, etc.
Bowling balls are usually made from these materials:
Plastic used for bowling balls is usually polyester. It is a readily supplied material. This plastic coverstock makes a straight spare on the modern bowling alley and surface of the lane, offering low friction.
Urethane provides mediocre hook potential and glides steadily to the ten-pin. Technically, these balls are manufactured using polyurethane instead of urethane in its pure form. This is because polyurethane is easier to frame and mold. And you will also notice changes in urethane balls from different manufacturers.
Urethane solid makes the shot straight even if the lane is frictional and far-sided. These components hit with a great strike.
There are three different types of core, namely, asymmetrical, symmetrical, and pancake.
This is usually included in beginner bowling balls, such as The Storm Timeless. It is made of urethane balls placed at one corner of the ball, and the center contains filler material. They provide balance to entry-level bowlers. They are usually rectangular and offer a lot of hook or breakpoint.
This core is placed right in the middle of a ball, but they are not evenly shaped. As a result, you can lose control of the ball. Hence, these cores are preferable for advanced bowlers, making solid strikes, banging down the pins in a single shot!
The symmetrical core is larger in the middle of the ball. Also, they can be shaped in any form, but the most common is the light bulb shape. They have more break and bite than the basic pancake cores. Bowlers of all skill levels opt for the symmetrical core for decent control and break.