Electrode Carbon with Stopper, Material: Carbon and rubber, Carbon rod, Fitted into rubber stopper, For use with Hoffman Electrolysis, Diameter: 0.25 in
Electrolysis Electrode, Material: Platinum, Sealed in glass tubes inserted securely in a rubber stopper, Fit standard electrolysis tubes, It has a rubber stopper No.1 with 18 gauge copper wire, Diameter: 0.75 cm, Length: 8.89 cm