Welcome to our store！</br> 1、Strong Material: Made of 210D nylon material, strong and durable. Two sides are glued and sealed and then stitched for reinforcement. Polyurethane nylon is much more durable than PVC mesh. 2、Double Reinforcement: Bottom is designed with hook and loop and rubber bands, which are double fixed, reducing the volume, convenient to carry, and also providing safety guarantee for diving. 3、Top D Ring: Stainless steel D ring can be connected to D ring of the BCD with hook to reduce the burden of diving equipment. Secondly, the D ring can also hang flashlight or signal light, which is convenient and fast. 4、Safety Explosion Proof Valve, Quickly Discouraged: There are two reasons for the explosion proof valve: First, if the inflation is too much, it will run out of the explosion proof valve and will not burst the buoy. Second, the air volume of the container filled with air will expand during the ascent. The buoy is placed on the surface of the water. If there is no explosion proof valve, it will explode before it reaches the surface. 5、Dual Purpose Inflatable Mouth: Pressing the second stage from below to exhaust can blow air in through the funnel. Fine mouth of the funnel will automatically close, even if the pressure inside is higher than the outside, there will be no air leakage. <p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: Diving Surface Marker Buoy Material: 210D Nylon Weight: Approx.188g/6.6oz Size: Length: Approx. 1.15m/3.8ft, Width: Approx. 13cm/5.1in Main Functions: Top D Ring, Vent Valve, Inflation Nozzle, Secondary Head Inflation, One Way Membrane, Storage D Ring, Storage Rubber Band, Storage Hook and Loop, and Can Also Be Used with Spool. <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Diving Surface Marker Buoy&nbsp; Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>