8' Personal Watercraft Ramp Extension. Add to 11' Model PWC for shallow water applications or to safely secure your personal watercraft further on shore. When purchasing this item, the manufacturer recommends adding the Ground Anchor Kit. From Roll-n-Go Shore Docking Systems. Manufacturers Part #: rngpwcext Related searches: boat lift, boat ramp, pwc lift, pwc ramp, pontoon ramp, roll-n-go, rollngo, roll n go, pontoon lift.