Ball has approx. 10 games on it . Layout is pin above bridge with cg kicked right about center of palm with a small weight hole. Ball has a total span of 4 7/8 using grips and thumb slug. Mint condition. Both ball drilled identically.
Reacts just like my 508A which look better going down the lane so this one goes. $75.00 shipped for the Hammer and 65.00 for the Jet. Will entertain some trades for track 919c.
Both balls for NIB Track stuff.