Guidewires, Uncoated Guidewires, Nitinol Guidewires, Hydrophilic guidewires, and Lunderquist guidewires Our Guidewires are available with a J tip, a straight tip, or double distal ends. We have SS Core Stiff Guidewires, Extra Stiff Guidewires, and Super Stiff Guidewires to meet the Clinical requirements of Professionals. We do have kink-resistant guidewires as well. Our guidewire range is available from diameter 0.018" to 0.038", which supports lengths up to 70 cm.