Sleek and Balance aluminum alloy barrel Distinctive textured grip area Acid Free Ink. 2 Free Spare Black Ink Refills Retractable & Refillable. Uses Pentel's LR7 gel ink refill 0.7mm metal tip produces Medium lines The EnerGel Alloy RT has a stylish modern design with brushed aluminum and chrome accents. The sleek, balanced aluminum alloy barrel allows maximum comfort and performance. The advanced blend of super-smooth liquid and gel inks are quick drying. Exquisitely designed with an aluminum alloy barrel for those who want to make a statement. High-performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience. Experience greater writing control with the distinctive, textured grip LR7 Refills are made in Japan.