The ideal tandem for collimating a Newtonian, IMO. A 1.25" Teleport laser collimator, just a few months old and lightly used (I also have a 2" version that I'm keeping) and with all the original papers and stickers for labeling the collimation screws to correspond to the grid pattern on the face of the laser if you want (may reduce confusion about which collimation screw to turn to achieve a desired change). Made of tough Delrin acetyl, this collimator also features nylon snugging screws to get rid of the wiggle that most laser collimators have in the eyepiece holder, and it has an automatic on/off switch. Just insert it, collimate, and remove it. You can't accidentally leave it on.
A laser is all some people use for collimation, but once you get the secondary lined up and use the laser to get the primary close, the Rigel Aline tool will take you on to a very accurate alignment of the primary mirror. Looks like a simple peep sight, and it is, except for the reflective material on the inside. It makes huge difference in visibility. It's just as accurate and easier to use than a Cheshire for alignment of the primary. You order something like this by itself you end up paying a lot for shipping, percentage wise. I picked up an extra last time, and this is it.
The Teleport collimator is $100 new and the Rigel tool about $5. Selling both for $89 shipped in CONUS. PayPal okay. (SOLD)