This operation and maintenance kit is what you'll need to keep your microscope optical lenses working and clean. It includes two types of immersion oil for high magnification power objectives: one with ultra-low viscosity to prevent air-bubble formation, and one with higher viscosity for prolonged use. To clean your optics, especially after oil-use, Sparkle gets the job done and prevents static. The soft, anti-static, lint-preventing task wipers will clean your lenses in a jiffy, without abrasion. Features : A professional operation and cleaning kit for microscopes, cameras, laptops, etc., no water marks left, non-corruptive Type A and B immersion oils; Safe for all lenses Safe for all optical lenses of microscopes and cameras; no harm to lens coatings Low-lint dedicate task wipes Specifications : Type A and B immersion oils; volume: 1/4 Oz (7ml); refractive index: ND=1.515; meets ISO-8036/1; Standardized at 23'C Task wipers: 280-count, 4.4" x 8.4" (11cm x 21cm) Optics cleaning liquid (glycol): 59.2ml Packing List : 1 1/4 Oz Type A immersion oil 1 1/4 Oz Type B immersion oil 1 280-ct box of task Kimwipes wipers 1 Cleaning liquid for optics Shipping weight: 1.5 lb