Where the walls are falling into bars. Must be in the vertical bars. The distance of the gap between the organization must have a width of less than 10 cm.
In case of a fall. wall grating must be vertical grating by the distance of the gap between the enterprise must have a width of less than 10 centimeters.
In the case where the walls were made of a lattice is a lattice must be in the vertical plane, the distance between the gap between the ball must have a width less than 10 cm