If you’ve ever thought about cracking open a bowling ball, what’s inside may surprise you. A marketing video released by bowling ball manufacturer Storm offers a rare look into how the balls function. An oddly shaped structure called a weight block helps give the ball the momentum it needs to roll down the lane properly. According to the video, the block in the Storm ball is designed to transfer energy from the ball to the pins at the most critical moment, hopefully increasing the bowler’s chance of landing a strike. No amount of technology can save you if you can’t keep the ball out of the gutter, though.