Common only in Northeast U.S.
Small rubber ball cut in half. Pitcher throws it like flying saucer. Batter uses broomhandle. Usually 3 players per side. No baserunning.

Also known as HB, refers to half an 8 ball ie. 3.5g/2, which is the same as saying 1/16th of an ounce or 1.75g of (usually) powdered drugs such as Cocaine, Meth, Ket.