Available in different sizes:
30511 - 3/4" x 2" O/A X 1-5/8" projection Plain Ring
30512 - 3/4" x 5" O/A x 3" C/C x 1-5/8" projection Plain Ring
30513 - 3/4" x 7" O/A x 5" C/C x 1-5/8" projection Plain Ring

Available in custom sizes