Hobie Mast Step Ball fits Hobie Wave and Hobie 17 kayak seat I use 120 grit paper

I use 120 grit paper on a nice flat surface to take off a small amount of material

Foam supported Ripstop - nylon collar

Straps and pull string adjust for a tighter fit

Ronstan carbine hooks have ferrule lined or closed eyes to retain the fixed line

kayaks and inflatables made from HDPE

Hobie Mast Step Ball fits Hobie Wave and Hobie 17 kayak seat I use 120 grit paperHobie part # 50212301 This is the hard plastic ball that the mast sets on and rotates on . Fits Hobie Wave and Hobie 17 only. The stud that ball screws onto measures 9 16" diameter. There is a different ball for the Getaway, 20 and 21 that fits a larger stud. Sometimes called the dolphin striker ball