The Solar Filter is for telescopes dew tube front end diameter from 127-154mm(5.00"-6.10") !

Note: the front end diameter is bigger than the number in the telescope model. It is TOO SMALL for Celestron 127EQ, Celestron AstroMaster 130, Celestron NexStar 130, Skywatcher 150, Orion SpaceProbe 130ST, Orion 10016 StarBlast 6 Astro telescope. Please measure the front end outer diameter make sure the dimension of your telescope is in the range 127-154mm(5.00"-6.10")" .

A must-have, white light filter for safely observing the sun and su nspots without damaging your eyes. With this Solar Filter you can safely observe the Sun and you don't have to worry about your eyes. This filter will protect them from harmful solar radiation.
The German-made Baader Planetarium AstroSolar Visual film has a uniform structure and provides high-quality images with no distortion. It allows you to see a lot of details on the solar surface such as granulation, solar flares and the structure of the spots. All this you will be able to see with your own eyes. With this filter the Sun will be of a neutral, eye-pleasing white color.
Optical density: 5.0 Aperture of the telescope.
CAUTION:
Never look at the Sun, either directly or through a telescope, without a professionally made protective solar filter installed that completely covers the front of the instrument, or permanent eye damage could result.