The Beaver-Visitec Int 581638 is a Retrobulbar Needle designed for ophthalmic procedures. It is 1 1/2 inches long and 23 gauge, which is a fine size that minimizes patient discomfort during insertion. This needle is designed to be sharp, reliable, and easy to handle, ensuring precision and control during use. It is a single-use, sterile product, ensuring safety and hygiene in every procedure. This product comes in a case of 50 units.