Specification Brand : BORDSTRACT BulletPoint1 : PREVENT DUST AND DAMAGE FROM AFFECTING YOUR TELESCOPE LENSES: These telescope lens dust caps are designed to fit perfectly with the lens of your telescope or teleconverter, blocking dust, moisture, and scratches from impairing your optical performance and clarity BulletPoint2 : SCREW ONTO THE LENS INTERFACE THREAD FOR A TIGHT FIT: These telescope lens covers feature a threaded design that allows them to be screwed directly onto the lens interface thread, ensuring a secure and reliable lens protection that won’t fall off easily BulletPoint3 : COMPATIBLE WITH M42x0.75 SIZE TELESCOPE AND TELECONVERTER EYEPIECES: These telescope threaded lens covers are suitable for use with telescopes or teleconverters that have M42 external thread dimensions, ensuring versatility and compatibility with various equipment and brands BulletPoint4 : MADE OF DURABLE AND LIGHTWEIGHT ALUMINUM ALLOY MATERIAL: These telescope aluminum alloy caps are made of high quality aluminum alloy material, which is sturdy and reliable. They can withstand the rigors of outdoor use in various weather conditions, such as rain, snow, and heat. They are also lightweight and easy to carry around BulletPoint5 : EASY TO INSTALL AND REMOVE WITH A SIMPLE TWIST: These telescope lens dust caps are designed to be easy to use and hassle free. You can install them on your telescope or teleconverter lenses with a simple twist, without needing any tools or complex operations. You can also remove them quickly and effortlessly when you want to use your equipment Color : One Color CompatibleDevices : For Insta360 Ace Camera Department : Unisex Adult ExternallyAssignedProductIdentifier : 7543423047984 ExternallyAssignedProductIdentifier1 : 0725530416946 ExternallyAssignedProductIdentifier2 : 725530416946 FormFactor : Cover IncludedComponents : 1*Protective case, 1*Lens cap ItemName : BORDSTRACT M42x0.75 Telescope Lens Dust Caps, Threaded Aluminum Alloy Covers for Telescope and Teleconverter Eyepieces ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 7 centimeters ItemPackageDimensions_Width : 4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-caps Manufacturer : BORDSTRACT Material : Silicone ModelName : Qiilutbkf0g34oa ModelNumber : Qiilutbkf0g34oa NumberOfItems : 1 PartNumber : BORDSTRACTxavmy0uqg6 Pattern : Solid PhotoFilterEffectType : Enhancing PhotoFilterThreadSize : 55 millimeters ProductDescription : Specification: Item Type:Lens Dust Cap Material: Aluminum alloy