Kumihimo Disk with CLEAR Ergo Handle & 8 Weighted Bobbins-6 Inch Disk, Ergonomic Handle (Kdhold) & 1 7/8" Weighted Bobbins (Bob1w) Beadsmith Kumihimo Disk with Ergonomic Handle. Foam Disk is 6" in diameter and 10mm thick PLUS 8 Weighted Bobbins (BOB1W) that are 1 7/8" in diameter. Weighted bobbins are great to increase tension on your cords. The CLEAR ergo handle makes it easier to braid longer as it relieves fatigue. This handle will fit all of your Beadsmith Brand kumihimo foam disks, except the square and mini. Includes braiding instructions with projects to make. Kumihimo is so fun, you can make a project in less than an hour! Beadsmith Brand--Quality construction!