STX Lacrosse Duel U Unstrung Face-Off Lacrosse Head The stx duel U is a faceoff specialty head designed to allow the faceoff specialist to dominate the x Stx's revolutionary patent pending throat plug allows the player to get closer to the ball Specific flex zones engineered in the Mid section of the head for optimal faceoff movements Dual sidewall Braces provide extra stability on ground balls and at key moments of the faceoff Third screw Hole through throat plug provides additional torsional stability and is Compatible with new stx duel handle