Letter size ring binder mechanisms are the metal spine pieces from binders. These binder parts (binder spines) pieces are available in 3-ring for letter size 8.5" x 11" papers in ring sizes from 1/2" up to 4" in silver, black or brass.
Product Name: 3-Hole Binding Spines; Package Included: 10Pcs Binding Spines. DIMENSIONS: Hole Pitch: 2cm; Rind Diameter: 2cm; Sheets Capacity: about
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