<p><b>Description:</b></p><p>Design: Pull Pin Spring Knob for stationary bikes knob for most bikes.<br>Material: Made from iron and ABS, it is sturdy and durable.<br>Feature: The knob comes with a built in spring handle, will not scratch your hands due to winding.<br>Easy to install: The knob is easy to use and quick to install, it will not take up too much time for you, and it is very convenient.<br>Applications: The fitness bike pull pin spring knob is widely suitable for strength and fitness equipment, exercise bikes, etc.</p><p><b>Specification:</b></p><p> <p> <p>Material: Iron, Plastic</p> </p> </p><p><b>Size Chart:</b></p><p>Large: 5.5cm/2.17inch<br>Small: 3.5cm/1.38inch</p><p><b>Package Includes:</b></p><p> <p> <p>1 Pull Pin Knob</p> </p> </p><p><b>Note:</b></p><p>Please allow slightly errors due to manual measurement and different monitors.</p><p><span style="font-size: 16px;"></span></p><p><span style="font-size: 16px;"></span></p><p><span style="font-size: 16px;"></span></p><p><span style="font-size: 16px;"></span></p><p><span style="font-size: 16px;"></span></p><p><span style="font-size: 16px;"></span></p><p><span style="font-size: 16px;"></span></p><p><span style="font-size: 16px;"></span></p>