FIFA specifies the goal dimensions as 7.32m x 2.44m x 1.5m (width x height x depth) for 11-a-side ball international matches. The width of the goalposts and crossbars should not exceed 12 cm. The football goal net must be “hooked” to the goalposts, edge of the crossbar, and firmly attached to the ground. In order to prevent hindering the goalkeeper's ability to catch the ball, the tension of the net must be appropriate. Nevertheless, the pressure must also be moderate to prevent the ball from bouncing back onto the court. Goalkeeper nets are usually made from suitable materials such as fabric, jute, or nylon. Also white are the goal post and crossbar of the 11-man football goal.