Tamper Safe Security: Secure Velo binding hot knife binding is by far the most secure binding available on the market. The Velo binding machine actually takes the binding strip and rivets in place melting the plastic pins into the back of the receiving strip. In order to remove pages from a document bound with Velo binding you actually have to cut binding strip apart using a razor blade tool. Without an expensive machine to rebind the document users can not edit the document without it being very obvious. For this reason many lawyers and government offices choose Velo binding hot knife systems to bind their briefs and sensitive documents.