rubber bowling ball. [Photograph]. https://www.amazon.com/Champion-Sports-Rubber-Bowling-Ball/dp/B000KA2VDO/ref=asc_df_B000KA2VDO/?tag=hyprod-20&linkCode=df0&hvadid=167144997553&hvpos=&hvnetw=g&hvrand=6346612015146528785&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9027926&hvtargid=pla-308582011371&psc=1