What is zebra delguard limited edition?

Unfortunately, as an AI language model, I do not have access to the most current or specific information. However, it is known that the Zebra DelGuard Limited Edition is a mechanical pencil featuring a protective shock-absorbing tip to prevent lead breakage. It also has a unique mechanism that allows the lead to retract as you write, extending the life of the pencil. The limited edition versions may have different colors or designs than the standard DelGuard pencil.