On our NPPL Turf field we have the latest bunkers from Sup-Airball™ featuring their water weight system. Each bunker has a chamber of water in the bottom of the bunker to weight the bunker down and keep it in place. This eliminates the need for those pesky sand bags laying around. What makes this field stand out is the premium grade turf that lays on the floor. This turf is soft and offers a perfect surface for sliding.