I have an older Mace jump break I just received on trade. Finish is in rough shape but the cue breaks like a champ. I would say 13mm and around 19.5 ounces. Little taper roll but the shaft is dark and tight grained with a hard phenolic tip on it. I would like to trade it for a 5/16-14 piloted low deflection shaft. In order of preference... Mezz, Jacoby, OB, Tiger, Predator, etc...






