It has a Nitinol + LubriSkin® coating with a 4 cm and gold-plated tip. It has an angled shape and a 9.5 cm distal hydrophilic coating. Moreover, it is similar to the 0.018" steel wire. 80270 has a length of 220 cm and is angled. 80271 has a length of 270 cm and is angled too. 80272 is angled and has a length of 320 cm. All of them are available in packs of 5.