Mako saddles are designed for stability and protection of sea kayaks, recreational and whitewater boats. Sorry to disappoint those of you who saw the name and figured they were for riding sharks. Form fitting cradle fits any hull shape. Dynaflex pads flex to grip the boat hull securely. Tightening strap gives you complete control over the grip. Padded buckle protects your boat and your vehicle. Mako pads provide supirior protection for your hull sold separately. Includes bowstern tie down straps to complete kayak stability. Compatible with factory crossbars, if you get some mightymounts sold separately. General Information: Weight: 3lbs per pair. Height: 6.5 tall, 8 wide, 10 long. Capacity: 2 pair per kayak or 1 pair Makos with 1 pair of HullyRollers.