https://greatofindia.com/product/oculus-1616-1617-dr-clip-red-green-plastic-abs-body-with-rubber-grip-fitted-with-german-blue-ink-refill-set-of-2-pens/
Oculus 1616-1617 Dr. Clip Red & Green Plastic ABS Body with Rubber Grip. Fitted with German Blue ink Refill. Set of 2 Pens.