The perfect tool for new and intermediate skiers. These tail weights attach to the tails of your combo skis via the fin screws. They make getting up easier by keeping keep your skis stable and at the correct angle for deepwater starts. Each kit comes with 6 plated weights. Use 1 weight per ski for 59 Skis, 2 weights per ski for 63 Skis, and 3 weights per ski for 67 Skis.