TIESOME 5pcs Replaceable Ballpoint Pen Refills with Spring Metal Ball Point Ref

5pcs Retractable Metal Ballpoint Pen RefillsMaterial: metal + plasticColor: red, blue, blackSpecifications: 0.7mmProduct size: single 9.9*0.4cm/3.9*0.2in, Spring 2.8cm/1.1inPacking size: 15*10.5*0.7cmPacking list: 5pcs* ballpoint refill, 5pcs* spring.

eBay