Zebra DelGuard Type-Lx Mechanical Pencil Color:Black this case is both sturdy

this case is both sturdy and convenient

or any other field that requires precise measurements and accurate drawings

Designed with five divided sections

so you can write with convenient disposable cartridges or refill from bottled ink using the converter

Zebra DelGuard Type-Lx Mechanical Pencil Color:Black this case is both sturdyThe DelGuard utilizes an ingenious two part system that makes it virtually impossible to break the lead. First, a spring in the barrel of the pencil lets the lead slide back into the pencil instead of breaking if too much vertical pressure is applied. Second, another spring in the tip dynamically extends the lead guard to protect the lead when too much sideways pressure is applied. It may sound complicated, but it really works! And without the