The x Deep Closed d SMB 140cm is a compact closed cell delayed surface marker buoy to mark a location in the water. Bright orange colour & reflective tape increase the visibility of the SMB & the closed design ensure it stays inflated on the surface. Functional The d SMB can be inflated easily orally or with a LPI hose & the over pressure vavle allows expanding air to escape to prevent damage. The top of the SMB has a clear pocket for notes that can be sent to the surface to communicate with surface cover. Webbing loop at the base of the SMB aids easy reel attachment & a bungee loop holds the d SMB wrapped up when not in use. Features Closed Cell LPI Inflation Message Pocket Reflective Tape Over Pressure Valve