A white sheet of terminal block markers that are unlabeled and can be customized with various labeling options such as TOPMARK NEO, TOPMARK LASER, BLUEMARK ID COLOR, BLUEMARK ID, BLUEMARK CLED, THERMOMARK PRIME, THERMOMARK CARD 2.0, and THERMOMARK CARD. Designed to snap into the tall marker groove, suitable for terminal blocks with a width of 8.2 mm. The lettering field measures 7.6 x 10.5 mm, allowing for clear labeling.