10-9/16” diameter. (Same cone as the old QC-2)
Dobro-style spider bridge instruments.
This is the inverted cone that gives a more mellow tone like a "National" resonator. Works great for studio recording, with less overtones. It has a two-step lip to accommodate both the short & long spider bridge. Patent Design 1932 - No. 1,896,484. Made in USA.
Tension Screw not included (see below).
Installation Available, but not included