The Pentel Z2-1N eraser refill fits a variety of mechanical pencils, including:

P200 - P205/P207/P209

EnerGize - PL75/PL77

EnerGize X - PL105/PL107

Wow! - AL405

Kerry - P1035/P1037

Orenz - PP505/PP502

Orenz Nero - PP3005

GraphGear

The refill tube includes four white eraser refills. 4 Erasers per Tube.