Add resistance training to your at-home workout with the CENTR Sand Bag. This durable sandbag has 2 inner sandbags, each holding up to 15 pounds of sand (not included), adding up to a total of 30 pounds of resistance to your workouts. The durable vinyl and hook-and-loop closures hold up to tough use, and the 7 comfort-grip handles make it ideal for a variety of shoulder, arm and whole-body workouts.