Mares Regular Surface Marker BuoyRegular Surface Marker Buoy The standard orange marker buoy is the ideal buoy for your technical diving. Its technical features make it reliable for signaling the position even in difficult conditions. The closure at the base prevents any possible loss of air. Inflatable by mouth or by inserting the hose of the BC, it guarantees total filling. Features: Orange color with over pressure valve (opv) Width: 15 cm total length: 1. 80 m lifting thrust: 12kg