Fisherbrand™ Optical Lens Cleaner, 1 Each Bells Includes most popular nylon aneroid Style:1 Pair (Left & Right) Includes most popular nylon aneroid with index and range markings Black * Easy to sanitize closed cell foam grip provides non slip surface * Adjustable * Fits ceiling heights 7 9 * An extension comes with this item and is made to reach a 10 ceiling * Portable Main pole easily separates into two 53 pieces making it easy to transport * Can be installed in virtually any area of a room extactly where it is needed * Weight Capacity: 300 Lbs Fisherbrand optical lens cleaner cleans gently — will not affect a coated optic or soften the mounting that holds the objective in place Regular cleaning helps extend the life of the lenses of your microscopes and other equipment by removing surface debris that could cause scratching