Infra Slow Fluctuation electrodes.  Made especially for ISF neurofeedback friends and with the greatest respect for ISF creator is Mr. Mark Smith (USA).  We made them more durable and very affordable.  These silver/silver chloride electrodes for ISF are made by www.stsrc.com

Mr. Teo Chin Chong (Singapore)
Sales enquiry: ccteo@stfsrc.com