Pentel EnerGel Pro Permanent Gel Ink Pen, (0.7mm) Black Ink, 3 Pack (BLP77BP3A)

The Pentel EnerGel Pro Permanent Gel Ink Pen has received mixed reviews from customers. Some users found the pen to be effective for protecting against check washing and appreciated the security measure it provided. The quick-drying ink and smooth writing were also highlighted as positive features. However, a few customers expressed disappointment, stating that the pens did not have ink or failed to write. Some found them to be ineffective on envelopes and check registers. Despite these negatives, others found the pens to be worthless and advised against purchasing them. Overall, the product seems to have a polarising reception, with some customers finding it to be a valuable security measure for writing checks and preventing fraud, while others were dissatisfied with its performance.