Install a suitable IC tip on the suction pen. Place the tip lever on the IC. Press the button on the suction pen to release the in the vacuum unit, and then release the button to generate vacuum suction to the IC. Place the IC in the proper position, press the button, the vacuum unit exhausts the , and the IC falls from the straw. The suction pen comes with 3 suction tips, the , medium and small sizes are: 10mm, 7mm, 3mm specification: Colour:Silver Material:Plastic + Silicone Size:115x11mm Package Contents: 1 * FFQ939Vacuum pen 1 * Small Suction Header 1 * Medium Suction Header 1 * Suction Header Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.