Amazon.com: Pentel Energel Style Pen With 2 Refills - 0.7mm Medium Line Executive Pen - Twist Action Refillable Rollerball Gel Pentel Pen - Luxury Pen With Velvet-lined Gift Box - Black Barrel : Office Products
Amazon.com: Pentel EnerGel Permanent Security Pen Black 0.7mm Pack of 12 BLP77-AX : Office Products
EnerGel RTX Refillable Liquid Gel Pen, 0.7mm, Blue Ink 3-pk — Pentel of America, Ltd.