Brass roller nut by Guyker. Free shipping, anonymous delivery.

The rollers support the strings, ensuring stable tuning and expanding your whammy bar expression by eliminating friction (even for aggressive playing).
Made of brass, it produces a brilliant sound.

Comes with three set screws for height adjustment.
Recommended for Gibson-style guitars (string spacing from 1st to 6th string is 35mm).

Used, but in like-new condition (photos are from before opening).

*Neck modification is required for installation.