Norestar 7.5 inch Mooring Buoy, for use also as Boat Fender, Crab Marker, and More Great for use as a mooring buoy or for marking crab traps and other gear Superior valve design, conveniently located in the rope eye for increased durability Single valve system for ease of inflation and deflation also helps prevent leaks and stripping Ships deflated, easily inflated with any sports ball pump. Even walled thickness for extra durability