Printed Seat Risers for Sun Dolphin Kayak

I designed and printed these new risers for my Sun Dolphin Kayak in order to get the Craftsman Versastack tool box under the seat. The original ones were a little more than 2 inches too short. These should be plenty strong as I used PLA +. I also made the back risers open ended so you can remove the seat without a lot of trouble. I will need to use bungie straps to hold them down in the case of a tip over, but everything needs to be done that way anyway.