Hesacore's multifaceted design expands the contact surface between the hand and the handle. As a result, Hesacore provides 8-14% more grip, depending on the grip used. This means the player can hold the handle with less effort and finger contraction, without the handle slipping. When striking the ball, the contraction of the hand muscles (especially the middle and ring fingers) is directly linked to contractions that also occur in the wrist and forearm. All this muscle activity affects the effectiveness of the shot, as a stiff and jerky movement would hinder the effective transfer of energy to the ball. Unlike traditional grips, players using Hesacore appreciate the fact that the handle doesn't slip. A better grip also relaxes the muscles from the hand to the forearm, which promotes a smoother and more harmonious swing. The ball leaves the racket with control, feels heavier, and is faster.
