Chumia100 Pcs Twin Loop Wire Binding Spines Black Spiral Binding Coils Metal Double Loop Binding Wires Wire Spines Combs 1/4in 5/16in 3/8in 1/2in 6/19in for Teacher Student Document Notebook Making

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🖇️ Bind Boldly, Organize Like a Pro!

Chumia’s 100-piece set of black twin loop wire binding spines offers five size options from 1/4" to 9/16", made from durable metal with a smooth finish. Designed with a 3:1 pitch for compatibility with standard 3-hole punches, these double loop coils provide secure, professional binding ideal for students, teachers, and office use.