The Celestron 25mm Telescope Ocular Eyepiece is a high-quality eyepiece designed specifically for telescopes. With a 1 1/4 inches diameter, this eyepiece provides a clear and sharp view of celestial objects. Made by the reputable brand Celestron, this eyepiece is reliable and durable for long-lasting use. Perfect for astronomy enthusiasts looking to enhance their telescope viewing experience, this eyepiece ensures a smooth and detailed observation of the night sky.