Blunt, thin-walled cannulas allow a high flow rate, while the luer lock hub enables an easy, secure connection to a backflush handle or syringe. XL cannulas offer an increased overall length for easier access in patients with high myopia or longer eyes. The thin wall Blunt-Tip Cannula comes in four gauge sizes; 20g, 23g, and 25g, with two lengths of 32mm and 36mm, and the 27g with the standard 32mm length.