RubberbanditzWater Weight Aqua Bag - Filled Hydro Core Training Bag for Balance, Strength Functional Fitness Training -Exercise Sandbag Alternative Power Water Weight Bag, Portable Home Gym Equipment

I did walking lunges around the block with this on my back... talk about soreness. Great for stabilizer muscles in your core.

Its not whats in the picture. It functions like s standard dumbell. whats supposed to happen is upon the thrust water is shoved to the back, upon stopping its then shoved forward. this uses both twisting and stopping muscles. This bag is too small and made to force all water to the bottom regardless. its under weight. I have a 50 gallon container in the house. i can barely get it upstairs. this bag weighs 20 pounds max, closer to 15.it also arrived with a hole in it already, hence the tape.

I’m a weight lifter and as such I’m constantly trying to up my game. This little thing does exactly that. It activates muscles I didn’t even know I had. And the amazing thing is that every rep is a different lift due to the water shifting inside. Your balance and core will definitely get a workout with this thing quickly.Filled it up with water and was skeptical that it might leak - WrongIt didn’t even spill a drop and I’m pretty vigorous in working out.Would I recommend it as end to all workouts? No, but definitely a supplement to improving what you already have.The reason for the lower review rating was simply this: Rather costly for a bag of water that sloshes around. Howbeit it is well made and durable and you couldn’t just make one yourself.The other contributing factor was the hand holds. They are not comfortable. Like holding on to a flat tie down rope.Anyways, if you got the money and need a change up for a while in your routine, this would be the item to get.

The aqua bag I got only has 2 straps on one end, unlike shown in the picture, which makes holding it a little difficult. I used it to do squat. I like the weight can be easily adjusted by water weight. I'll contact seller to see what they say.Update: Seller sent me a new package just like in the picture. Compare to what I got previously, this one certainly has quite a few improvement:1) The 5 bonded handles make it easy to grab depending what you want to work on and how wide you want to hold it.2) weight up to 50 lb is more than enough for me.3) it comes with the air pump.4) No instruction in the package. However, there is a video in the product page.5) Lifetime guarantee sounds good.I'm not sure the purpose of the dyes. I'd rather use just water in case it does leak. I hope not. I updated my rating based on good customer service and improved functionalities as I listed above.

This item was not the same shape as pictured; where the picture shows a skinnier and longer cylindrical bag with handles on the sides that would make for a pretty versatile and user-friendly weight, the one I received was short and fat, with the handles placed both on top, making it less usable and versatile, in my opinion (and more likely to pull something in your bag if filled up much).The product did have a strong plastic odor, as do pretty much all products of this material, but I imagine it will continue to dissipate over time, so not a huge deal, but something to keep in mind if you are especially sensitive.Otherwise, the product seemed well made and pretty durable for what it is. The handles seemed well secured to the bag with reinforced heavy duty material, and the nozzle for filling with water seemed secure, especially with a kind of double twist in seal, so I truly doubt you'd have to worry about it leaking during use. This product seems like it will hold up over time (but I won't be able to tell, as I (or my husband) wont be using it regularly bc of the design. Also, I like that the bag is clearing marked with fill lines on the side that correspond to weights in lbs, so you know exactly how much water to add for desired weight. One feature that could be improved was the handle strap; it had a velcro padded strap for the two handles, which could certainly make it more comfortable to use for some exercises (or just transporting around if filled), but it was very hard to fit both handles in at same time and close, even with zero water inside, and if you had the bag filled to the max it would be impossible.Overall, if this style is what you are looking for, I would recommend it, but its not the same one as pictured (long and skinny cylinder shape). I would give this company another try since product seems well made. Hopefully, they will update the listing pictures/ info.