High Tech C Slim Knock Series These writing instruments are built for precision writing with slim models for easy mobility and comfort. 10, 100 or 600 per order ($ 2.20 ea) Gel Ink Knock Type Refills Available in Black, Red, Blue, and Blue Black (10 or100 Per Order) ($.80 per refill) Available in 0.4mm or 0.3mm (0.4mm models shown) Hi-Tec-C (Black) Hi-Tec-C (Blue Black) Hi-Tec-C (Blue) Hi-Tec-C (Red)
