Bulgarian Sandbag 20KG Product Details Body Size: 20KG Used indoors only. Used only a few times, with no major damage and in good working condition. You can train your whole body, focusing on balance and core strength, by lifting and swinging it. There are many training variations for endurance and balance. You can do push-ups with it on your back, arm curls instead of a barbell, etc. Strengthens the upper body. Muscle Training Running Powerlifting Squats