Comparison : Item # 12182, 0.312 x 12 Inch (in) Brass 360 H02 Half Round
Item # 12183, 0.312 x 24 Inch (in) Brass 360 H02 Half Round
Item # 12184, 0.312 x 36 Inch (in) Brass 360 H02 Half Round
Item # 12185, 0.312 x 48 Inch (in) Brass 360 H02 Half Round
Item # 12186, 0.312 x 72 Inch (in) Brass 360 H02 Half Round