Korpa 
Jack White’s raw, gritty aesthetic and boundary-pushing creativity have made him one of the most influential guitarists of our time. Now, Fender celebrates his legacy with a bold collection of co-branded Third Man Hardware accessories—designed to embody the striking aesthetic and unmistakable style that define his artistry.
The Fender® x Third Man Hardware™ Strap Blocks deliver the ultimate in strap security with unmistakable style. The most reliable and hassle-free instrument strap lock system ever devised. No need to remove or replace existing strap buttons on your guitar; just slip a Strap Block over the existing strap buttons and that's it - you're ready to go, with your strap locked securely in place.
Each package includes two complete sets: one in classic black and one in bold yellow, giving you the freedom to mix, match, or outfit two instruments.
Features
Set of four Fender® x Third Man Hardware™ Strap Blocks – 2 Yellow and 2 Black
No guitar modifications required
Made of durable TPE rubber
Compatible with most OEM strap buttons
Made in the USA