This easy to use gold bulb snuffer is an invaluable tool for extracting small gold specimens underwater. It can also be used as a high pressure jet to blow hard to reach material out of cracks. It has a one way system making it virtually impossible for gold to escape once the gold has been sucked up. It comes with a 12mm OD  9mm ID stainless steel rod for durability and high visibility yellow rubber bulb.
You will wonder how you ever managed without one!