In traditional way to set up an inflatable racing marker buoy, customers always use weights fixing with the buoy anchor on the bottom of the buoy and maitain the balance of buoy, to make them standing on the water surface sturdy. as they use the buoy on the ground also with the same method by rope fixing the anchor to the ground tightly. But once our customer want to set them up on the ground with such a compllicated way, it will cost such a long time and with additional tools as assistance. How to set up a race mark easily and conveniently, is very important to our customers. Of course, innovation of design on the bottom of buoy, probablely would help a lot to our customers.
Generally the cylindrical race mark, with its common design whose bottom would be like the surface of semispher.
