Feature 1Made of high grade materials, good sealing performance, explosion-proof, durable and not easy to damage. 2Quick inflate or deflate after using for quick storage. Giving you a convenient using experience. 3It adopt 4.5cm TPU one-way explosion-proof valve, which will automatically seal after inflation. 4There is reflective strip on both side, easily draw people's attention and allow them to find your position quickly. 5There are 316 stainless steel D rings on the top and bottom, which are easy to attach it on your pocket or clip.SpecificationDescription The function of surface marker buoy is to let ships and people at sea know that the diver is underwater and about to come up. Features: 1. Made of high grade materials, good sealing performance, explosion-proof, durable and not easy to damage. 2. Quick inflate or deflate after using for quick storage. Giving you a convenient using experience. 3. It adopt 4.5cm TPU one-way explosion-proof valve, which will automatically seal after inflation. 4. There is reflective strip on both side, easily draw people's attention and allow them to find your position quickly. 5. There are 316 stainless steel D rings on the top and bottom, which are easy to attach it on your pocket or clip. 6. It ensures extra safety while diving, really an indispensable accessory for diver location marker. Specification: Material: 210D Nylon Cloth + Waterproof TPU Coating Optional Color: Fluorescence Yellow, Red Size (Fluorescence Yellow): Approx. 150*15cm/59.06*5.91in Size (Red): Approx. 148*15.5cm/58.27*6.10in Packing List: 1 * Surface Marker Buoy .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; }