When you need to take out the lens, you need to pinch the suction ball, then attach the suction cup to the appearance of the lens and slowly place it in a suitable position. To release the lens, you just need to squeeze the suction ball again. This lens suction pen kit includes a spherical lens suction cup pen and 7 suction cups with different diameters, which can meet the needs of most camera lenses. This lens suction pen kit is definitely a must-have for you to repair and clean camera lenses, watches, integrated circuits and electronic components, which can bring great convenience to your repair work. The suction cup of this lens suction pen kit is made of conductive silicone material, which is very soft, anti-static, and durable and will not scratch the lens or damage delicate parts. You also need to clean it frequently to avoid fingerprints and smudges. The spherical suction pen and 7 suction cups of different sizes in this kit provide enough suction to make your operation easier.