【Material】: This bicycle seatpost screw is made of titanium alloy, which is wear resistant, sturdy, and reliable. It has a smooth surface without any burrs. 【Easy Installation】: The bike seatpost fixed bolt can be easily installed on your bicycle, making it a convenient choice for all cyclists. Decide whether to install washers based on seatpost requirements. 【Detailed Design】: The bike seat post bolt features finely detailed threading that ensures great strength and stability during the tightening process. 【Lightweight and Compact】: With its lightweight design and small size, this bicycle screw is easy to carry around. It's an great DIY replacement part for your bike. 【Versatile Use】: Not only does it function as a bike seatpost washer bolt but it also serves multiple purposes in maintaining the overall performance of your bicycle. Specification: Material: Titanium Alloy Package Includes: 1 Bicycle Seatpost Screw Note: Please allow slightly errors 1-2cm differences due to manual measurement.