【No Mark Installation】 The suction cup install marks on the rear window are easily removed and leave no permanent marks. The window must be absolutely clean so the suction cups get the best grip on the window 【Antenna Fin Protection】 The boat roller gives a higher clearance design, If you have a vehicle with a shark fin/spoiler/air deflector roof antenna, so it will maximum protection the antenna doesn't damage by the hull during loading 【Fit Curved Window】The advantage of the kayak loader is served by the compact space between the powerful suction cups that get the best grip on both of the flat or curved windows .
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