"FOOT PUMP BRAVO 10 Heavy Duty - Double Chamber Manufactured from strong nylon-reinforced fibre-glass. Unalterable by the sun or sea environment. Big but lightweight - Universal hose/valve adaptors 4 anti-slip feet for greater stability. Standard crush-resistant hose. All stainless steel metal parts. Should you not use a pressure gauge to control the boat pressure, BRAVO 10 footpump is provided with a visual pressure indicator to warn against overinflation"