The ICU Medical B1273 is a set of IV extension tubes that are 21 inches in length. These tubes are mini-bore/low volume, which means they are smaller in diameter and carry less fluid than standard IV tubes. They come with a rotating luer lock for secure and easy connection to other medical devices. This product is DEHP-free and latex-free, making it safe for patients with allergies or sensitivities to these materials. Each set is individually packaged for sterility and there are 50 sets per case.