Set of 32mm wooden rings and adjustable straps. - Brand: 5BILLION - Ring Diameter: 32mm - Included: 2 straps - Material: Wood - Strap Length: Adjustable Thank you for viewing. I purchased these, but they were larger than I expected and I didn't use them. I bought them on Amazon last year for about 5,000 yen. Please note that the metal fittings have some scratches from rubbing.