Feature: 1.double row, metal body 2.good balance 3.lifespan 6-8times of press ... as below:- Size(inch)3, 4, 5, 6, 7TypeSingle Row, Double Row, Turbo Row, Radial, SnailConnection22.23mm, 5/8inch -11, M14 ... ,#120,#180,#200,#220body: metal, eluminum; with or without holescolor: customize color available More pictues of double row cup wheel as below ...