Cressi Freediving Training BuoyDedicated to freediving lovers. It has a durable external material, an external zipper pocket, 4 external handles for pre immersion preparation, and 2 exterior D rings. The wide interior space allows storing the rope during transport. The inner bladder features a valve offering the choice of oral inflation or the use of an inflator hose. The freediving rope can be connected to the underneath stainless steel D ring. The red diving flag is included to