Promar 6in Styrofoam Ball Float With 15ft Line Crab Gear - The 6 inch styrofoam ball float is the newest addition to Promar's wide assortment of buoys and floats. This float comes pre-rigged with 15 feet of black poly line with a plastic insert to help extend the life of the float. This is a must-have for recreational and the commercial blue crab anglers.