size: 4"x4"x3.1mm-W/O BB-FHP finish: AB,AC,BP,CP,CB,SB,SG,GP,BN,PN,SN Features:1) All kinds of sizes:2) Material: high quality steel3) All sizes and finishes are available4) Competitive pricefinish: AB,AC,CB,BP,SB,SG,GP,BN,PN,CP,SNheads completely according to clients' samples(for Amcrica Market)