This lens suction cup kit is ideal for repairing and cleaning lenses and watches, mounting IC components, and handling other small parts. The suction cups provide a strong vacuum seal for lenses, while the smaller ones can pick up tiny parts from watches and integrated circuits. The suction pen's tube can retrieve items from hard-to-reach places while keeping them free from fingerprints, smudges, grease, and dirt. 7 suction cups in various sizes (12 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm) fit lenses, optics, watches, and IC components of different sizes. Notes: 1. Stains, grease, moisture, particles, and dust can prevent the suction cups from working. Clean the surface before use. 2. Do not use the product on concave or convex surfaces. 3. Do not use the product for anything other than its intended use. 4. Clean the product with mild detergent. Then soak it in lukewarm water for 5 minutes and let it dry. 5. Keep out of reach of children. 6. Keep away from fire. Color: Black Material: Silica Gel Package Contents: 2 * Suction Pen 14 * Suction Cup Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The permissible measurement error is +/- 1-3 cm.