A power forward is a position in basketball that plays a role similar to centers. They are typically taller and stronger players that play close to the basket, but they must also be a bit more mobile to play outside defense and grab loose rebounds. Here are some of the key responsibilities of a power forward:

• Rebounding: Power forwards are responsible for grabbing rebounds on both offense and defense. They must be able to jump high and have good timing to get the ball.

• Defense: Power forwards must be able to defend against taller players, such as centers, as well as smaller players, such as small forwards. They must be able to move quickly and stay in front of their opponent.

• Post play: Power forwards often play with their backs towards the basket and are responsible for scoring close to the basket. They must be able to use their size and strength to get past defenders and score.

• Mid-range shooting: Many power forwards are noted for their mid-range jump shot, and several players have become very accurate from 12 to 18 feet. They can also shoot three-pointers, but this is less common.

• Setting screens: Power forwards are responsible for setting screens to help their teammates get open. They must be able to position themselves correctly and use their size to create space.

Overall, power forwards are versatile players that can contribute in many ways on both offense and defense. They are typically between 6 9" to 6 11" in the NBA and 6 0" to 6 3" in the WNBA, but there are also players that fit "tweener" roles and can play small forward or center depending on matchups and coaching decisions.