Protect your Scotty downriggers with the downrigger and mount locking systems. Works in conjuction with your existing mounting knobs and padlocks of your choice. Works with all Scotty tilt-up Electric and Manual downriggers. Manufactured using rugged fiber reinforced engineering grade nylon molded over a robust stainless steel plate. This system provides a degree of protection for your Scotty Downrigger and Swivel Mount. It is not designed to, and will not stop a determined and equipped thief.