A set of Guyker locking tuning machines, GK-D-07SP or similar model, for a 6-in-a-row inline headstock. Aged rust colored, all complete with washers, nuts and screws.

Excellent condition as shown, these are probably brand new. One has some sort of residue or a manufacturing defect in the finish on the button, see photos. They work with no issues.

Price is for the lot. Guyker sells sets like this for $70-90USD.