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TOTiyea 50 Pack Double Loop Wire Binding Spines,1 Inch Diameter,2:1 Pitch,21-Loop, Black, 220 Sheets Capacity, Letter Size : Amazon.co.uk: Stationery & Office Supplies
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Binditek 50 Pack Double Loop Wire Binding Spines, 5/8Inch Binding Wire for Letter Size, 2:1 Pitch, 140 Sheet Capacity, 21-Loop, Black, for Students and Coworkers : Amazon.co.uk: Stationery & Office Supplies
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RAYSON Wire Binding Spines, 2:1 Pitch, 12.7mm, 90 Sheets, 23 Loops, A4, Black, Pack of 100 : Amazon.co.uk: Stationery & Office Supplies
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