Zebra DelGuard ER Anti-break Core Mechanical Pencil (0.5mm) - Eraser Edition

• Unbreakable lead mechanism - protect your lead

• Compatible with any 0.5mm lead.

• Special Eraser Mechanism Edition!

• Eraser refill included.Comes with a bottle of 2 additional eraser refill!

• Eraser comes out when positioned upside-down, and only retracts back when writing position!

• Never worry about lead breaking again! The 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 annoyance and interruption of breaking leads, you'll find your concentration greatly improving.

• Delguard system installed - Protect the core from all directions

• Vertical Force : 1. Upper spring absorbs writing pressure / 2. Prevents breaking by escaping the core upward

• Diagonal Force: 1. Lower spring absorbs writing pressure / 2. Tip jumps out and guards core

• Delguard protects up to the lead protruded by 4 times of press. If more than 4 times of press, the lead might subject to breakage.