Grooved Hoop No.0236 Described as "for a 12"Diameter Banjo Rim". The Hoop measures EXACTLY 12" and sits perfectly on top of my 12" Orpheum rim.
I was very happy with the quality and appearance of this grooved tension hoop. And the price was good too. Fast shipping. I give it a 9.
I build approximately 100 instruments a year and use Stew Mac tension hoops. Shipping is prompt and quick - about two days for me. Occasionally I have had a problem with the chrome plating flaking off in a spot or two and, each time, I have only to call and a replacement is sent immediately along with return postage for the defective hoop. This a dependable source for good quality hoops and good service.