This link's price is for 2pcs (a lot)
The electroencephalogram (eeg) electrode used for the electrode wire is extremely gold-plated. The gold-plated electrode is described as follows:
The wire is made of 12-core tinned copper wire, and the joint is ordinary 2.54 dupont joint
A. dupont head
B. gold-plated brain electrodes
C. Wire (normal wire/super soft silicone wire is optional)
D. Line length (1 m +/-5cm)