A knob simulating device that can be affixed to a sporting good, such as a baseball bat. The knob simulating device encircles the shaft of the baseball bat and is made up of a plurality of components that mate together to surround and encase the entire periphery of the bat shaft. Each of the component parts has a hard exterior portion and a resilient interior portion for contacting and conforming to the circular outer surface of the baseball bat. The resilient interior portion is generally cylindrical and may have one or more deformable projections that retain the device along the circular outer surface of the baseball bat. There may be a plurality of deformable projections in the form of annular rings that can be angled so as to securely retain the knob simulating device in the desired location along the shaft of the baseball bat.