The superb OMS Slimline Hybrid 3.0 Surface Marker Buoy is unique in that it can be simply inflated in 3 ways. Either using a Regulator or Octopus 2nd Stage or Air Inflation Gun or Nozzle through the bottom opening, through the Duck Valve which only allows air flow in one direction using a Standard DIN QD Fitting Suit/B.C.D. Inflation Hose or by oral Mouth inflation. Standard Size 1.0 Metre – 3’3” in Length & 16cm – 6 ½” Wide, manufactured from Lightweight Flexible High Density Nylon with internal Polyurethane Coating providing a Buoyancy Lift of approximately 3 Kgs – 7 Lbs. 25mm – 1 Inch wide Webbing Attachment Strap with 316 Marine Grade Stainless Steel D-Ring. Pressure Relief Exhaust Valve with Pull Cord protects against overpressure & allows air to be easily released. Also has a Slot for inserting a Strobe or Light Glo Stick. Inflates at the Surface to display Divers position in the Water. Rolls up neatly when not in use & secures with the Elasticated Bungee Cord Strap & can be stored in a suitable Pocket or Pouch on a B.C.D. or Tech Harness or attached to Cylinders etc. with Bungee Cord etc. Bright Highly Visible Pink Colour Weighs only 0.16 Kgs. Also available in Orange or Yellow & also with a Larger 1.8 Metre – 6 Feet Length.