The weight throw is an indoor track and field event, predominately in the USA. The technique implemented to throw the weight is similar to that of the hammer throw in outdoor competition. In international competition, the men's weight is a 35 lb ball (25 for high school) with a D-ring or triangle handle attached directly to the weight. The technique in wide use is to start in a throwing circle with the thrower's back to the landing area. The weight is then swung overhead to gain momentum before transitioning into the spinning position. The thrower then turns heel to toe up to four times across the ring and toward the front of the circle. At the front of the circle, the thrower releases the weight over his/her shoulder and into the landing area. The landing area is a sector of 34.92° which is identical to the Hammer throw, Discus throw and Shot Put. Because of the demands of the landing area, USATF rules allow for the event as part of an indoor meet to be held outdoors. The world best for men is 25.41 m (outdoor) and 25.86 m (84'10") (indoor) and is held by American Lance Deal. For women, who throw a weight of 20 lb, the world best is 24.57 m (80'07½") (outdoor) set by Brittany Riley of Southern Illinois University on 27 January 2007 and 25.60 m (indoor), by Gwen Berry, on 4 March 2017.