Review on 🛥️ Taylor Made 61146 Tuff End Inflatable Boat Buoy - Orange, 15" Diameter: Top-Notch Quality for Reliable Water Safety by Reza Cook

Also used as an alternative to the Aqua Punching Bag lol. I just set it up so can't comment on durability but the rubber feels very thick and strong. It took a bit of maneuvering, but I was able to funnel this (mostly) in my sink. Be patient when filling as there is only one opening so when the water comes out, air has to escape. Also, the bag comes fully emptied and sealed. So try to soften the rubber a bit when filling (makes it easier to fill with water). Much better than the water bags which are twice the price here and made exactly the same.