SecureCaps Engineering Consults, Manages, creates or invents custom composite, steel or billet hot rod and motorcycle accessories with the exception to our SecureCap which is a Security Device that protects and secures your Harley-Davidson engine with smart Engineering technology by a locking oil tank dipstick. SecureCaps keeps your Harley engine safe, secure and protected at all times keeping would be perpertrators out. SecureCaps are made for the following models: Softail, FLH and Dyna. Built and Assembled in the USA, the SecureCaps Smart locking oil tank dipstick was designed for security and peace of mind while protecting your investment. - Easy installation, no dis-assembly or parts from your O.E.M. dipstick are required. - Complete and Ready to Install right out of the box. - For the amount of hard work, time and money we put into our bikes SecureCaps really provides what we need to protect or guard your Harley Engine when our bikes are out of sight. SecureCaps Engine Protection you can trust to do the job when you need it done right!