Binditek 50 Pack Double Loop Wire Binding Spines, 5/8Inch for Letter Size, 2:1 Pitch, 140 Sheet Capacity, 21-Loop, Black, Students and Coworkers

【140 SHEET CAPACITY】Each double loop binder measures 1.5cm in diameter and 1mm thick, which can hold up to 140 sheets of 20# paper. 50 per box: these binding wires are made from high quality metal, with a double-loop style to provide security and durability, stable enough for your long-term needs. 2:1 Pitch: These double loop binders have 2 holes per inch, they are compatible with 2:1 pitch binding machines or machines with release pins. 27.9 cm: These 21 double-loop buckles are designed to be used with letter-size paper, or you can connect smaller projects by cutting off the oversized part. Binding: The double loop binding wires can gather your files together and organize them to keep them in order, no more scattering or disorder, an ideal choice for your presentation, meeting or office. They make great suitable gifts for teachers, students and colleagues.