Fangrui Product Details Description This Objective Lens Cover Is Made Of Premium Rubber Material, Which Can Withstand Long-lasting Use. Features The Rubber Material, Which Has High Durability, Not Easy To Deform. Fine Workmanship, Ensures Practicality, Effectively Protects The Telescope Lens. Features - Color: Black. - Material: Rubber. - Size: 12.00x6.00x1.00cm/ 4.72x2.36x0.39inch.- Note: Objective Lensinner Diameter51.71mm, Objective Lensouter Diameter45.40mm;eyepieceinner Diameter41.11mm,eyepieceouter Diameter44.88mm. - Protecting The Telescope Lens From Dust, Scratch, Bump, Excellent And Practical For You.- Easy To Put On And Simple To Remove, Will Not Affect Binocular Performance, Convenient And Useful.- Your Old Or Broken Objective Lens Cover With New One, Useful And Safe For Binoculars.-simple In Structure, Easy To Use, Strong And Excellent, Good Protective Effect, You Can Use It With Confidence.- Small And Compact Size, Light In Weight, You Can Carry And Use It Wherever You Go. Packing List: 1 Set X Rubber Obj