Looking for vintage Roto Grip plastic / rubber bowling balls in 15#.  Can be single drill but prefer decent condition (nothing with huge gauges like they were used as cannon balls).

Plastic: Blue Roto,Tra-ker
Rubber: X-2,X-R

Will buy outright, but I have Storm Lightning Flash(16#), Hammer Cherry Vibe(15#), Storm Tropical Storm (15#), and a Storm Trauma (16#) all single drill for trade also.

Thanks!

-Pat