The Tater-U10 model aims to reduce the amount of compression a hitter's hand experiences. The big knob gives the hitter the ease of mind when swinging.
Since batters are swinging the bat through the zone and ultimately around their body - at some point their hands must roll over the knob of the bat. During that moment, the knob quickly compresses the area of the hand where the hypothenar muscles lie.
Below is an up-close visual to highlight the details in both the handle and barrel.
Here's each color option below. Every color can be paired with a different color handle and barrel. You can use this as a reference to get creative with your custom bat!