Fangrui Product Details Features:blowing Balloons Are Made Of Latex Material, Which Is Anti-aging And Does Not Degumming, Full Of Elasticity, Not Sticky Or Fading, And Will Not Be Hard In Winter Enough Blowing Volume, So That More Dust Has Nowhere To Hide; The Neck Of The Blowing Balloon (the Joint Of The Blowing Nozzle And The Sphere) Is Thickened And Not Easy To Bend, Which Can Effectively Prevent Damage To The Lens When The Mouth Touches The Lens During Use; Skills:when Using The Blower, Pay Attention To Avoid Blowing The Ash To The Place That Cannot Be Cleaned.in Principle, When Blowing Dust, The Lens Should Be Downward To Avoid Dust Entering The Inside Of The Camera Lens.when Squeezing The Sphere, The Speed Must Be Fast, So As To Generate A Sufficient Strength Of The Air Flow.since Dust Generally Sticks To The Surface Of The Lens Horizontally, It Is Easier To Blow The Dust Away By Blowing Air From The Side. Product Usage:clean Optical Lens, Can Also Be Used To Clean Digital Camera, Digital Video Camera, Computer Host, Wat