The classic sandbag, a versatile and powerful strength training tool, offers unique benefits beyond traditional barbell training and is increasingly popular among functional fitness athletes. The ZIVAî Performance Power Core Bag enhances this dynamic tool with heavy-duty nylon straps, a thick PVC exterior, and large, easy-to-read weight numbers. This adaptable bag supports a wide range of compound lifts and combinations, engaging stabilizer and torque-generating muscles throughout the body, making it ideal for full-body superset routines.SPECIFICATIONS Specifications Made with hard-wearing PVC outer skin and encapsulated sand-filled inner core Increments 2.5kg increments Product Color Black / Grey / White