Longer Rotary Roller Series,with Bracket, Y-Axis 360° Rotation for Laser Engraver Engraving Cylindrical Objects Tumblers Cans Cups Bottles, Compatible with 99% of Laser Engraver,Size 268 * 184 * 60mm

So I will start with the negatives. The directions are both terrible and inaccurate. They state that the black ended cord is for "all other laser engravers" and the white ended was only for their specific brands. After trying the black cord over and over and getting a jumping rotary, I decided to try the white cord just on a whim before I returned it. It worked. I got it installed, made the adjustments and engraved a pen blank as a test. It did a great job!

Great roller rotary for my Longer laser. I initially bought a 3 jaw chuck rotary for engraving what was mainly to be tumblers and water bottles. The three jaw chuck does have a few advantages on some types of work but I found it to be tedious when doing tumblers and water bottles. Instead of trying to align the work piece and keep it centered with the jaws, I simply lay it on the rollers do a preview to ensure it's properly seated in the rollers and start to engrave. I found the jaws to be inefficient and time consuming to properly align especially if a tumbler opening had any slope in the opening, they frequently would wobble off center. The roller is simple, aligns easily and accurate, it's a great choice and I'd recommend it.

My son loves this and it works great!

Good solid product. Customer service is excellent also. Great product, great company.

It works great. It's paid for itself time and time again. I did however have to make a ring to make the cups turn true.

Fits most models but didnt fit mine. Looks like great quality though!

At first, I thought it my no going to work with the size. I thought it’s not gonna fit, but actually it does fit anything so far that I put on it. Super easy to install and work perfect once I connect with the system and pick it up right away,it works super smooth super easy instructions so far I working with glass wines and mugs and is really worth the money. This is how I work with mine because my laser is kinda low so I just got 2x4 on it. No mistakes so far.

OK. So when it says 99% compatible. If definitely does not mean compatible with Full Spectrum laser. Their P series engravers take a cannon plug insert that is definitely incompatible with the Longer friction roller.It came as ordered & was pretty nice but needs an accessory to connect their plugs to a cannon plug insert.