Special design has three inside channels that help prevent the tubing from becoming occluded. Ideal for home patients where long lengths can cause a potential kinking problem. Available in various lengths. Inner Diameter = 3/16". Latex-free. Features: Crush resistant, three-channel safety design provides security of uninterrupted oxygen flow Green or clear "no memory" tubing remains straight when uncoiled Innovative connector design has ribbed end piece with rounded, tapered edges Attaches easily to fittings Reduces entanglement