This Kumihimo Disk? is 6" in diameter and made of 3/4 inch (20mm) dense foam - double the thickness of the standard disks. The additional tension created by the increased thickness is useful when braiding Tex 135 S-Lon, #12 Pearle silk, and 30G (or smaller) wire.
The disk creates a rounded braid. With this Kumihimo Disk, you
Kumihimo Double Density Disk with Instructions, 6 Inches, 20mm Thick, 35mm Hole, #606