Features:
The mini pen with keychain is easy to replace the refill, you just need to unscrew the pen cap, remove the long spring from the old refill and cover it with the tip of the refill, then, install the refill with the spring back into the pen holder, and screw on the pen cap.
You can send our mini pens as delicate gifts to your friends and family members, they can apply them under many circumstances, and will thank you for your useful items as well.

Specifications:
Main material: titanium alloy
Color: as the picture shown
Size:
Mini titanium pen: about 3.31 inches/ 8.4 cm in length, 0.2 inches/ 0.5 cm in diameter

Package includes:
2 x Mini titanium pen
4 x Pen refills
2 x Keychains
2 x Gift bags
4 x Replace rubber gaskets

Notes:
Manual measurement, please allow slight errors on size.
The color may exist a slight difference due to different screen displays.
Poking and swallowing risk may exist, please put away from little kids.