DescriptionThis adapter allows the use of 1.25 inch eyepieces with telescopes that normally require 0.965 inch eyepieces. Filter thread in the 0.965 inch diameter side for reduced internal reflection. All metal construction and anodizing aluminium process, durable for long time use.Features- Color: Black. - Size: 4.50X4.00X4.50cm/1.77X1.57X1.77 inch. - Material: Aluminum. - Aluminum alloy material, longer service life and more durable. - It is easy to install and operate, easy to use, more practical. - The 1.25 inch adapter ring is used for astronomical telescopes. - Strong product compatibility, suitable for many products of the same type, simple and practical. - Aluminum alloy material, lightweight, easy to carry, go where to take.