High Definition: 1.25in telescopes filter can be used to observe various distant and subtle objects, increasing contrast and making details more evident. With Storage Box: 1.25in telescopes filter comes with a storage box, which is convenient for storage and carrying, and is dust proof and scratch resistant. Scope of Application: 1.25in telescopes yellow filter can be applied to telescope eyepieces with a diameter of 1.25 inches. Durable Material: Telescopes yellow filter is made of optical glass and aluminum alloy, which is clear to see, wear resistant and rust proof. Easy to Use: Colored telescopes filter is easy to use, easy to install and use without complicated procedures.