They are essentially non-polarizable

1mm tip length

Model 920 Rat Adaptor includes a nose and tooth bar assembly offering various stereotaxic adjustments

Standard Length: 35 CM 50CM

Optional analog output cable

22 Gauge Back Mount Pedestal (313-000BM-10-5UP/1)-Above Glove They are essentially non-polarizable22 Gauge Back Mounted Cannula Gauge 22 Pedestal Height 10MM (0. 394IN) Mesh Location Above Side Tubing Mesh Diameter 19. 05MM ( . 75") Upward Projection 5MM (0. 196") Max Length Below Pedestal 11MM Mating Connector Assembly C313C (40CM) No Spring or C313CS (40CM) With Spring Mating PE Tubing C313CT (PE50) Minimum Quantity: 10 *NOT FOR HUMAN USE*