• Famous easy to close leakproof seal
• Puncture proof tabs prevent damage to bag or gloves

Simply twirl or fold the bag over the wired opening three times. Then bend the wire end onto the bags. Your sample is now secure. All Whirl-Pak bags are made of heavy, transparent polyethylene and are provided EtOH gas sterilized (documentation available upon request). Choose from a variety of sizes and styles to suit your specific sampling needs.

Write-on bags have white strip that accepts ordinary ball-point pen, pencil or felt tip marker The paper-like finish virtually eliminates ink smearing and there's no label to fall off.