Thank you, for checking out Boat Goat dock bumpers! Our products have been tested to be one of the toughest, most durable plastic dock bumpers in the industry. This boat and dock protector will be one of the cheapest investments for any boat owner. This product line was designed after having to fix many scratches, and gouges, to our boat's hull. This product will save you time and money, while also adding an updated look to your dock!