Pool Cover Pillow Clip

This thing is an S-clip for attaching gap filler "pillows" to a winter pool cover such as a loop-loc or jersey cover. Originally my cover came with a few random stainless steel clips and plastic clips, neither of which worked very well and allowed the pillows to flop around and eventually detach from the cover. This clip is thicker and stronger and has an improved barb design so it snaps crisply onto the cover and holds it in place. I printed some in ABS (black) and the rest in hi-performance