This handle comes with a length 500mm carbon tube. So, you can cut it to fit you.
The carbon tube of the above image has cut to 250mm.

Color Group of Reel Seat	Group A	Group B	Group C	unpainted	I.D. of the handle
Japanese Yen	JPY9197	JPY9827	JPY10825	JPY7832	13mm 10mm(front grip)

It is easy to enlarge I.D. of front grip with a round file.
-Color Group of reel seat can be found on the linked page of "Colors of Reel Seat". That is shown below of each color name.