pull open 2 ring binder, 2 R ring catelogue binder material:iron color: nickel item code: PR133-2-25/20 length:131mm width: 20mm height: 29.5mm inside diameter: 25mm outside diameter: 29.5mm capacity: 20.5mm ring distance; 80mm rivet distance:122mm packing: 500pcs/ctn Following are some of our advantages: 1. About 10 years experience in file clips manufacturing 2. Always keep Upgrade the quality system base on ISO9001:2000 for production 3. Well equipped with completed facilities and professionally skilled employees 4. Environmental-friendly material and quality, SGS test reports can be offered if necessary. 5. OEM service is welcome 6. All of our products are offered in a competitively low price and of high quality. You are most welcomed to visit our factory if you are convenient.