These Fender 'F' Strap Locks are designed for simple, no-hassle performance and reliability.
Design features include a secure and simple release action system which holds up to 100lbs, and a simple removable fastening cap that allows you to change straps effortlessly.
They have a retro appearance, finished in a shiny Chrome, designed to look like an old amplifier control knob, with Fenders signature 'F' engraved on the top.
They're quite large, 24mm in diameter and 24mm high. Definitely very well made.
Simple to fit, just unscrew your old strap button, and screw in the new felt washer and Strap Lock button with the screw provided.
Then simply fix the cap to your strap, and push it on the button.