metal 2 round ring mechanism

item NO.: PR123-2-16/20 material: metal length: 123mm base width: 20mm inner ring diameter: 16mm outside ring diameter: 21mm clip height: 19.5mm hook distance: 80mm load paper:11mm packing: 500pcs/ctn measurement: 52*27*21.5cm NW:14.6kgs GW: 15.6kgs  

metal clip