1. Suitable for users with fast short length telescopes; it not only increases the magnification; the image be clearer than the average increase in magnification, up to 1.5 times the image clarity; 2. Increase the magnification of any 1.25Inch eyepiece by 1.5 times; compatible with most telescope eyepieces with a diameter of 1.25 inches; 3. Configured with 2 dust covers to prevent dust and fingerprints; 4. This telescope is equipped with 1 fixing screw to firmly fix the eyepiece; 5. It not only magnifies the image by 1.5 times, but also adjusts the-originally reverse image so that the telescope is adjusted to the forward image. Note:the appearance and color of screws are random, and the specification is not accepted. Color:Black Material:plastic Package Contents: 1 * barlow lens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.