Spring loaded strap lock system. Especially recommended for Resonator guitars. Includes 2 strap locks.
Schaller Strap Lock - Best Bass Gear
Endpins (Pr) For Schaller S-Locks M Nickel
Schaller style strap lock system, Ideal for guitar strap locking. Fast assembly and Quick & Easy release Easy to install, convenient to use;Color: Golden They are not genuine Schaller strap lock sytem, also is not compatible with genuine ones. Fit all kinds of guitars.
Musiclily Round Head Guitar Strap Locks System Schaller-style Straplocks PartsGoldPack of 2 M184-2
Grover Quick-Release Strap Buttons
Tone Ninja Classic Schaller-style Straplock, pair (2) Black Manufacturers Part Number: SLKA-B A pair of high quality Schaller-style Straplocks, including all mounting hardware. Easy install on most electric guitars, just replace your existing strap buttons. Can be installed on acoustic guitars provided the screw is affixed to a solid wood part of the body. For decades the most widely used strap lock system for guitars and basses. an essential item for any serious guitarist.
Tone Ninja Classic Straplok Black Nickel
AP-0682 Economy Strap Buttons — Allparts Music
S-Locks Pair - Gold Straplock Schaller
Schaller S-LOCKS Strap Lock Set - Philadelphia Luthier Tools
Buy Schaller S-Locks Guitar Straplocks (Set of 2)