Many of our silver caps are made in matching styles for different tube sizes. You can create a theme across different pen styles and sizes.
This cap fits the 10mm tubes it can be used on the Custom cigar with an 8mm short tube epoxied in place. Apx .450 dia.
6 recessed areas either as a design or for inlay of materials. 10 mm tube
Flat top for 10mm tubes
Domed top for 10 mm tubes.
Fits 10.5 mm tubes great for Sierra style pens. Or can be used in 10mm tubes as well.