Shiley XLT Inner Cannula is for patients with challenging anatomy and is an efficient and economical, off-the-shelf alternative to custom tracheostomy tubes. Available immediately. Quite a few boxes of 10 in stock ready to ship. I.D. 7.0 mm - O.D. 12.3 mm - Proximal Length 12.0 mm - Distal Length 49.0 mm - Box of 10 Exp. 10​/​18 SKU: 70XLTIN Return Policy: Items are sold as-is with no returns or refunds available unless explicitly stated.