Lectron II Gel 60ml This gel is used with carbon rubber electrodes and sticky fixers. 1 Tube: $4.50    12 Tubes: $42.00 - Save $12.00 ($3.50 per tube)    25 Tubes: $82.50 - Save $30.00 ($3.30 per pack)    50 Tubes: $155.00 - Save $70.00 ($3.10 per pack)     Quantity: