Evnroll Neo Classic ER8 Putter This elegant players-mallet features a deep, three-section rear cavity with the longest sightline of all the Neo Classic models. The top line is thinner behind the ball and over the cavity giving the ER8 a more elegant presentation at address. The soft tail section allows the eyes to see the blade-like center section and the long cavity sightline to promote the dual aiming features of perpendicular and parallel alignment.