Monocular XY250205, Size 130mm Key benefits Singleeye viewing solution for compact observation setups. Ideal when a lightweight, simple optical accessory is needed. Secure mounting with fixed screws for stable alignment and reduced movement during use. Protective heads guard the optical ends from dust and impact, helping preserve lens condition between uses. Compact 130mm size that balances portability and functional reach for closeup and midrange observation. What it does and why you need it Provides a straightforward monocular viewing option that integrates with small astronomical telescopes and similar optical instruments. Fixed screws make installation fast and keep the monocular firmly positioned so users can focus on observation rather than constant readjustment. Protective heads simplify storage and transport by preventing debris and minor damage to exposed optical surfaces. Important attributes Type: Monocular Model: XY250205 Size: 130mm Mounting: Fixed screws for secure attachment Protection: Protective heads for optical end coverage Compatibility: Designed for use with small astronomical telescopes and compatible optical devices Practical use scenarios Amateur astronomy: Attach to a small telescope for targeted lunar or planetary viewing sessions where a compact monocular is preferred. Field observation: Use with portable telescope setups for monitoring events or features at moderate distances while keeping gear protected during transport. Teaching and demonstrations: Quick to mount and secure, making it suitable for classroom demonstrations of optical principles and handson student observation. How to use and maintain Mount the monocular to the compatible telescope or adapter and tighten the fixed screws to stabilize the unit. protective heads when the unit is not in use to maintain lens condition. Store in a dry, padded case to avoid physical shocks and accumulated dust. This XY250205 monocular delivers a practical, easy to install viewing option for small telescope systems, offering stability through fixed screws and ongoing protection with fitted protective heads.