4.53 Inch Retractable Ballpoint Pen Refills 1 mm Medium Tip Black 35 Pcs

35-Count Retractable Ballpoint Refills

This pack supplies 35 black ballpoint refills with a 1 mm medium tip for click-action pens. Each refill arrives at 4.53 inch or 115 mm and can be trimmed to 4.2 inch, 107 mm, or 3.85 inch, 98 mm to suit different barrels. The medium point delivers consistent line width for everyday writing tasks. Buyers who need finer or broader tip sizes should look elsewhere.

Adjustable Length Compatibility

The refill tube is designed to be cut at two shorter lengths so it fits a wider range of click pens without modification to the pen itself. You must measure your existing refill before trimming because an incorrect cut cannot be undone. Pens that require a proprietary cartridge shape or a threaded tip will not accept these refills.

Medium Tip Writing Capacity

The 1 mm ball lays down a standard medium line suitable for notes, forms, and general office use. Ink flow is formulated for smooth delivery on typical paper without excessive bleed-through. Very heavy writers may find the ink volume depletes faster than with high-capacity refills. Users who require archival ink properties or waterproof documentation should choose a specialised formulation.