The relation between actual loft and bounce can change based on how the player addresses the ball; the more forward the ball, and the more open the clubface, the higher the effective loft and bounce angles. Some clubmakers will vary the amount of bounce that the sole has from toe to heel, allowing the player to fine-tune the club to the specific situation by opening it. When square at address, such a club behaves more like a lower-bounce pitching wedge, while when opened, the club behaves more like a sand wedge (without the bounce becoming too high and making a "skulled" shot more likely, as it would with a constant bounce angle from tow to heel). A few manufacturers call attention to this by labeling the wedge "D" for "dual wedge", indicating it can be used as either a pitching or sand wedge (or anything in between).