A right-handed player makes a backhand frontside pinch when aiming to the left corner and a reverse double pinch when oriented towards the right corner. For players that are lefties the opposite of the mentioned conditions apply. Moving on, the dink is an offensive charge that is applied to end a point. When the player tunes up the proper spin the service lead to little ball bounce thus return becomes difficult. There can even be a case wherein a successfully executed service may end up striking the side wall before the service line and then the ball would end up hitting the court area after the service line. However, its prestige diminished in the later part of that decade when racquet clubs started conversion into physical fitness clubs due to shifting preferences of people and changing demands. Before the start of the 1990s, total number of racquetball players in the US alone has reached to approximately 5.6 million. The common practice is that two serves are allowed which are identified as the first and second serve. During highly competitive tournaments and events the one serve rule takes into effect. During the point of live play the competitors take alternate strikes at the ball making the front wall the prime target. There are service boxes found at each end of the service zone and they are designated by lines that are parallel to the side wall. Each box has a width of 18 inches. The receiving line is a broken line situated parallel to the short line. Its back edge is five feet from the back edge of the short line. Interior bleeding in the eye socket, lacerations, bleeding eyelids, abrasions, swollen eyes these are some of the most common eye injuries. Wearing proper eye gear prevents serious injuries to the eye. Be sure to check if your goggles are properly recommended by the American Standard of Testing and Materials, and the Canadian Standards Association.