Brand new in open box! This device is used to easily load your kayak (s) up onto your car's roof. The product name is pretty self-explanatory, lol. The heavy-duty roller will smoothly glide the kayak up without scratching your car. Use and then place back into your car for safe-keeping. This item is designed for SUVs and cars with a hatchback-like trunk. Verify that your vehicle is compatible with a 1.5in fin gap required for operation. My wife got me this but it wasn't compatible with my vehicle. We never were able to use it.