These portable ladders hook right over your boats gunwale with a hull hugging design and ladder standoffs for added safety. Theyre lightweight and fold flat for easy stowing. Plus, they float if accidentally dropped overboard! Premium vinyl covered hooks protect gunwale surfaces and are offered in two sizes. Thick non-skid steps feature an Ultra Traction tread thats kind to your feet. Keep one accessible on board your boat for swimming, skiing and emergencies. 225lb. capacity. Mounting Style: Hook over gunwale Material: Heavy-duty 1" aluminum tubing, vinyl hooks and step treads Dimensions: 3-step: 36"L x 15"W; 4-step: 48"L x 15"W Warranty: One year