The 1.25" collimator is an excellent accessory. It can take some time getting used to aligning both the secondary and primary mirrors and this short collimator can make it much easier.
Specifications:
Color: Black
Weight: 200g
Thread: 1.25inch
Size: 5.7 x 1.4inch
Material: Aluminum Alloy
Suitable for Newtonian Telescopes
Package Included:
1 x Telescope Collimation Eyepiece
Notice:
However, never point the telescope or the cutout side of the Collimating Eyepiece at, or anywhere near, the Sun, or serious and instant eye damage could result!