Buy Standard 3 Ring Binder Mechanisms + Ring Binder Spines Online

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.

Buy Leitz 1050 standard folder with 180° mechanism online at Modulor

Esselte Standard Ring Binder

Half Size Mini 3-Ring Binder Mechanisms - Metal Spine Piece Only

Long-Lasting, Highly Affordable Metal Ring Binder Spine

Shuokecrafts 2Pcs Metal Standard Letter Size 3 Ring

Binder Rings, 3 Ring Binder Spines

Binder Rings, 3 Ring Binder Spines

Ring Binder Mechanism Spines

Cardinal Freestand Easy Open ClearVue Locking 3 Ring Binder 3

Buy Eslee Ring Binder, Best for A3 Size Paper, Artist File