DescriptionAre you looking for professional, yet affordable focusing mask? Are you in search of sturdy, trustworthy tool that can do multiple works at once? If yes, look no further! Our professional focusing mask must meet your needs. It is one of the best choices for you.Features- Material: Metal.- Size: 12.00X12.00X0.20 cm/4.72X4.72X0.08inch.- Wide range of application, suitable and excellent for various telescope, useful and excellent.- The focusing mask is very easy to install and simple to operate, giving you huge convenience.- Fine workmanship and creative appearance design will ensure its popularity and practicality. - Focusing mask can help you focus quickly, it can help you achieve perfectly focused webcam in a few seconds. - Metal material, flexibility and excellent durability, easy to use, for long service life.