Hobie Mirage Drive locking cam knob is a replacement for broken or worn locking cam knobs. Cam knobs keep the Mirage Drive locked into the drive well and can get worn down. Sold individually. There are 2 locking cam knobs per Mirage Drive, it's best to replace them at the same time. Hardware sold separately, but you should be able to reuse your existing hardware.
Worked great, nice replacement.
My complaint is there is not room for a standard socket wrench to fit over the hold down bolt so I had to tighten it with pliers.