2 Pcs Adjustable Heavy Fitness Power Sandbag, Portable Adjustable Canvas Sand Kettlebell Soft Sand Bag, Weightlifting Dumbbell for Home Training, Fitness, Yoga Workout

Overall, great value. I filled each with 30lbs of sand (I made 5lbs of sand in ziploc bags and taped them shut) and they are strong and super adaptable. I have a young son (2 years) and I can keep them in the house since the weights are soft. My son has a little sand playpen and I just took sand out of that. You can buy a 50 pound bag of all purpose sand or clay sand from Home Depot for like $4. I used a luggage scale and a Walmart bag to weigh out the portions.Once you get through about 20 pounds, they can be a little difficult to get inside the bag due to the size of the handles, but if you make your sandbags a little longer and thinner they will slide through fine. If you’re just pouring the sand in this is not a problem. The top does stay a teeny bit open, so I wouldn’t recommend just freely pouring sand in.At the end I ended up with two kettle bell sandbags each way in about 26 pounds that I use day to day. I have an extra 5 pound bag of sand for each that I add in to make it 31 pounds for some exercises. I’m really out of shape, so this is more than enough for me for quite a while. The fabric can easily hold more though.