Spear fishing takes concentration; unlike scuba diving a spear fisherman can't stop to adjust a loosening weight belt due to wet suit compression at depth. The Marseilles Rubber Weight Belt allows the serious spear fisherman to snug up the belt at the surface and forget it while fishing. The elastic rubber weight belt is manufactured with a high stretch rubber to keep your weights comfortably in proper position during ascents and descents. The high elastic properties of the belt will contract and compress with your wetsuit during your descent and expand and stretch as your wetsuit expand during ascent keeping your weight belt properly positioned around your hips. The Marseilles Buckle is made of heavy duty corrosion resistant stainless steel is attached to the belt with triple stainless-steel rivets and is designed for a quick release if necessary.