New from ASP: The LockWrite Handcuff Key Pen. This pen has the twist-open design. Patented by a police officer and manufactured to ASP's high standards. Functional and stylish pen with durable heat treated ASP handcuff key at end. Available in black with silver or gold trim. Each LockWrite pen comes with 2 black cartridges. 1 is in the pen plus an extra replacement. When a cartridge runs out of ink, simply send back to ASP and they will send you a new cartridge in a color of your choice (black, blue, or red). If no color is specified, a black cartridge will be sent out. This is a lifetime replacement policy!