ColorLok® is an inkjet fixative treatment developed by Hewlett Packard and offered under licence agreement by Performance Office Papers. It enhances color reproduction and print quality.
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Punched Binding Formats

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8 1/2″ x 11″ Punched Binding Formats
19-Hole (GBC®) 11-Hole (Velobind®) 4:1 Spiral

43-Hole Punch

4:1 Spiral

44-Hole Oval Punch

4:1 Spiral

44-Hole Oval Punch

3:1 Twin Wire

32-Hole Square Punch