To keep your support spindle centered as you spin, Edward has made a small depression right in the center of the bowls which are approx 3" in diameter.

Use these to darn those treasured handspun, knitted socks that you invested so much time and effort to make (width = 2½", length = 6½")

Use your orifice threader with your spinning wheel or as a threader e.g. to attach fringe to a scarf

1/2" and 1" wrap sections