New STX U 550 Unstrung Lacrosse Head with All Climate Performance Material White Grey Black Lace up closure for a snug CBC 19 32 29 Used4 Lace up closure for a snug fit locking you in with superior fit & feel Featuring STX's signature open sidewall in rear that flexes on checks and ground balls C Channel technology provides extra strength for checking and ground balls Dual sidewall braces provide stability on shots and ground balls Bottom rail is designed specifically for high pocket placement for additional power when shooting Meets NCAA and NFHS rules The STX Stallion U 550 allows you to run without reins The Stallion U 550 features STX's C Channel technology along the bottom rail to maintain strength without adding weight