Silicone Lens Covers — protective caps for eyepieces and objective lenses Key benefits Protects optical surfaces from dust and scratches, helping preserve image quality and reduce cleaning frequency. Flexible, durable silicone provides a snug, nonabrasive fit that stays in place during storage and handling. Easy to install and remove for fast setup and routine maintenance, increasing the usable life of telescopes and microscopes. Product details Compatibility: fits eyepieces with inner diameter of 5255 mm and objective lenses with inner diameter of 6163 mm. Material: made from durable silicone to resist wear while remaining soft against optical coatings. Fit and performance: designed for a tight, slipresistant fit that reduces the chance of accidental contact or contamination. How this solves common problems Keeps delicate optics covered between uses, preventing dust buildup and surface damage that can degrade performance. Reduces the need for frequent lens cleaning, lowering the risk of scratches from repeated handling or improper cleaning. Simple design minimizes installation time so instruments are ready for immediate use. Typical applications Laboratory work: protect microscope eyepieces and objectives when samples are changed or instruments are stored. Observatories: cover telescope eyepieces and objectives during downtime or when instruments are left unattended. Home and field use: safeguard optics during transport, storage, or quick pauses in outdoor observation. Technical note Sized specifically for inner diameters noted above; confirm your eyepiece or objective inner diameter is within the 5255 mm or 6163 mm range before .