Wusheng Dynamic Pen, Black Ink with Gravity Sensing Technology, Quick-Drying Smooth Writing, for Students And Middle School Use, High-Quality Water-Based Pen, Creative Retractable Signature Pen in Black

1. When placing the pen in a pen case or pen holder, retract the pen tip and lock the switch to prevent ink leakage.

2. To activate the drop protection function, press the push button with your fingertip and push it down to lock the switch.

1. This function cannot be triggered when the switch is locked.

1. In the unlocked state, rotate the pen tip to the left to remove the refill.

2. Insert the dedicated refill and rotate the pen tip to the right to secure it.