Ohhhh…I got so mad at this thing!!! The POP/Cart was a REAL disappointment and here is why. First off, in order for it to not slip off your boat (or for your boat to not slip out of it) you must bind it on pretty close to the center, or at least until you can give it something to hold on to (in my case a seat-back). Once I achieved that and began rolling towards water I found that the wheels wanted to slide across their axel towards the center, which resulted in the boat constantly tipping over!
The design is just awful…but here is my solution for any of you who have purchased one and are now not able to return it because it’s all scratched up from all that “tipping”. What I did was buy some narrow PVC piping, remove the wheels then run the axel through the (cut to fix) PVC. Once you’ve reattached the wheels the PVC will prevent them from sliding together. It’s not perfect, and it defiantly doesn’t seem fair that after shelling out $50.00 you have to re-tool this thing, but it’s better than spending the cash and then not being able to use it at all.