Responsive Respiratory - Ultra Soft Adult Cannula is available with either 4' or 7' safety tubing. The ultra soft cannula offers a flex-soft fit for the ultimate in comfort and reduces irritation behind the ears. Other features include: clear material for inconspicuous use, "Bolo Style" slide for patient adjustment, and six channel, star lumen tubing design to help eliminate kinks. Responsive Respiratory knows the key to comfort...ultra soft material for a more comfortable fit. Helps reduce blisters and sores around the ears and nasal area. Latex free. Each, Case of 50.