Features: Protect your telescope eyepiece from dusts and scratches with our high quality eyepiece cover, designs to extend the life of your equipment. Produced from and waterproof plastic, this cover is for various size and ensures easy installation for hassle frees Protections. Suitable for astronomy enthusiasts, professional astronomers, educational institutions, and member of astronomy clubs search reliable equipment maintenance. Perfect for outdoor watching activity , astronomy lab , school astronomy courses, and person telescope upkeeps, ensuring your gear stays in top condition. Enhances your astronomical experience by safeguarding your optical instrument with a stable eyepiece Caps that combines functionality and durability. Specifications: Material: Plugs size: about 5.5X5.5X2.4cm Lid size: about 5.4X5.4X1cm Package Includes: 1 set Telescope Eyepiece Cover note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.