The 3B7521 is a junior-size box style (6 ½H x 18 ½W x 5D x 5B), high tenacity polypropylene (HTPP) net with depth at the top. The HTPP material is treated to resist UV rays better than standard polyethylene. The 3B7521 features a 120mm mesh and a 3mm solid braid, knotless rope. The 3B7521 is specifically designed for box-style goals only (Kwik Goal models 2B9004 and 2B9004SW). The 3B7521 is only available in white.