Our brown spiral coil is perhaps more aptly characterized as dark brown, since this particular shade of brown resembles a deep cherry or mahogany. You could also identify our brown coil as coffee, cocoa, or even dark chocolate. Available in a wide variety of sizes ranging from 6mm-50mm in diameter these coils are 4:1 pitch and twelve inches in length for use with standard letter sized documents. However, custom lengths and pitches are available if you need them. Working perfectly with our binding covers and standard 4:1 coil binding machines, you can purchase our brown spiral coil confidently.