■ WELDED AND DOUBLE SEWED ■ 30 KG FLOAT ■ SAFETY ORANGE, CLEARLY VISIBLE FROM THE AIR AND FROM THE SURFACE ■ CHECK VALVE FOR VENTILATION WITH THE MOUTH OR AN INFLATOR HOSE ■ STAINLESS STEEL D-RINGS WITH PRESSURE, LONG CORE AND BOTTOM ENABLES PRECISE CONTROL OF THE LIFT WHEN RECOVERING OBJECTS