S-Probe, 32ch, 100µm interelectrode spacing, 75 intraelectrode spacing; 125mm total length(25mm; 640µm dia reinforcement tube); 300µm probe dia; CON/32m-V-connector interface; 770µm tip to 1st site. One column of electrodes (16 channels) for recording(15um) and the other column of electrodes for stimulating (15um).Inter-electrode space at site 31 is not even. One fluid channel is oval shaped near to sites 18-22, the other fluid channel is at site 28.