Hammer is very pleased to introduce the new Hammer Aggressive Reaction Technology (HART) core concept to the bowling industry. Developed by our team of design engineers, this radical new concept in bowling ball core design provides maximum performance without the need for exotic layouts and weightholes. It is that simple.

Combining the new HART core concept and Violent Response Reactive coverstock gives the bowler more aggressive hook motion and improved hitting power. This unique core concept delivers aggressive backend reaction by placing the pin at 1:30 with the HART in the track. The No Mercy is very simple to drill. For layout purposes, please use the plastic bag as a template.

Crowds part. Rivals flinch. Pins shiver. Beware of long, dark alleys. Evil is back by popular demand. Presenting the Skull Ball: the darkest Fun Ball to re-hit the market.

STRIKES MORE. One ball is all you need. Pushing our revolutionary GBV coverstock to a series high 12.7, the Angular One pearl carves the most extreme angle to the pocket yet. Now there's no reason to throw another ball. Unless you're into spares.

We took all the advanced technology of our most popular series and put it all together in ONE powerful release. With the GBV coverstock pushed to 12.7 in a pearl design, this ONE makes all the others seem like they're going straight.

You can attack the pins aggressively with the Black Widow bowling ball from Hammer. The High Mass Bias Gas Mask core with flip block and violent reactive coverstock give the ball the extra juice to stay on attack mode. The Black Widow hits hard on the back end, giving the needed speed for the big strike!

The Ebonite Nitro Urethane Dark Blue Pearl bowling ball is made from polyurethane construction and has a sanded finish for superior contact performance.

The Ebonite Crush Reactive Black/Silver Sparkle bowling ball showcases a Reactive Resin construction with a polished surface for superior skid and late hook performance.

Recommended for recreational bowlers, the Ebonite Zoom Glow Bowling Ball offers a durable polyester construction and glows for blacklight bowling.

Offering a low hook rating and smooth breakpoint angle, the Ebonite® Magnum bowling ball is designed for drier lanes and spare shooting.