- Versatile Eye Cups for Microscopes and Telescopes: Designed to enhance your viewing experience, these eye cups provide a comfortable and effective barrier against ambient light, allowing for clearer observation. - Optimal Fit: With an inner diameter of approximately 29-30mm, these eye cups are compatible with a range of microscopes and telescopes, ensuring a snug fit for most eyepieces. - Comfortable Soft Rubber Material: Made from durable, soft rubber, these eye cups can be easily folded for added convenience, providing a flexible yet secure fit during use. - Multiple Diameter Options: Featuring eye guards that accommodate various diameters, these eye cups offer effective shielding from light, improving your ability to focus on your subject. Use Scenarios: - Microscopy: Perfect for laboratory settings or educational environments, these eye cups help students and professionals alike to concentrate on fine details without distractions from surrounding light. - Astronomy: Ideal for stargazers and amateur astronomers, these eye cups enhance your comfort and viewing pleasure during extended observation sessions, allowing for a more immersive experience. - Photography: Use these eye cups with camera equipment to block out stray light, ensuring that your images are sharp and well-defined. Upgrade your equipment with these eye cups to enhance your viewing experience and improve your focus on the task at hand.