1Oxford Cloth: Yoga sandbag is made of leakproof and waterproof 600D Oxford cloth, which is very suitable for internal filling. 2Adjust Sand Bag Weight: You can adjust the amount of sand as needed to achieve the desired support or weight. 3Yoga Fitness Workout: Yoga sand bag is used for yoga fitness to increase muscle and improve fitness effect. 4Relax Your Muscles: Using the empty yoga sandbag enable your muscles to relax and your energy to ground. 5Good Workmanship: Unfilled yoga sand bag with exquisite workmanship and portable size, providing you great using experience.1 x Sand Bag1 x Inner BagItem Type: Yoga Fitness SandbagProduct Material: 600D Oxford ClothProduct Color:NavyBlueWeight: Approx. 80g / 2.8oz