Buoys and armbands -SMB Scuba Diving Surface Marker Buoy Tube And Neon Green Reflective Tape (4FT) Highlights generic brand SMB Scuba Diving Surface Marker Buoy Tube And Neon Green Reflective Tape (4FT) Description: SMB Scuba Diving Surface Marker Buoy with safety reflective strip and dive flag, premium, high visibility, long life and durable Surface Marker Buoy ensures divers can be seen while diving. deep sea SMB can be filled using the oral inflator, or through the use of an inflator at the bottom, you can also use a standard BC hose to inflate The built-in pressure relief valve allows the tube to rise without breaking Excellent equipment for safe diving, snorkeling, spearfishing and other underwater activities Specification: Material: Nylon, TPU Length: 120cm/4ft, 150cm/5ft, 180cm/6ft (optional) Width: approx. 15cm/5.9inch (120cm); 17cm/6.7inch (150cm); 18.5cm / 7.3ft (180cm) Package Includes: 1 Piece Surface Marker Buoy Note: Please allow slight difference due to manual measurement. The color may be slightly different since the different monitor. THANKS!