The Carl Zeiss 490134 Pre-Moistened Lens Cleaner Tissues are a great cleaning tool for any type of optics. The Zeiss tissues have an ammonia-free cleaning liquid already introduced to the cloths and are ready to use right out of the Zeiss package. These pre-moistened tissues are perfect for keeping lenses free from fingerprints, smudges and dirt. Each pre-moistened tissue comes in its own separate package helping to keep the other tissues fresh and it also makes it easier to take one with you wherever you go. The Zeiss Pre-Moistened Lens Cleaning Tissues are perfect for any brand of optics. This high tech ammonia free formula safely and quickly cleans all lenses and sports optics. Especially designed for anti-reflective, multi-layer coatings. Just spray and wipe dry with soft cloth.