The free throw circle has a radius centered at the midpoint of the free throw line. The half-circle on the mid-court side of the free throw line is painted solid. In the NBA and ULEB, the boundary of the half closer to the basket is traced in a broken line in order to space players properly for jump balls. NBA Rule 1 (g) requires the key to contain two long hash marks, from the free throw line; the marks indicate the so-called lower defensive box. The free throw line is from the perpendicular projection of the face of the backboard onto the court; this projection is from the end-line for NBA and NCAA or NAIA. The projection of the center of the basket onto the court is a perpendicular distance of from the end line in FIBA tournaments, but in NBA and NCAA or NAIA tournaments.