Soccer goals come in various types including permanent goals that are anchored in concrete, semi-permanent goals that are retained in the ground by bushings, portable goals that can be dismantled for transport, and demountable portable goals that are very light. Nets for soccer goals should be made of nylon, bent twines, or similar material and attached to goals either permanently for the season or removably using clips or Velcro. Goal dimensions are also specified depending on whether for 11v11 or 7v7 soccer.