YOOPAI Metal Leveling Nuts and Springs Nozzles Heatbed Silicone Leveling Column Mounts Hand Twist Upgraded Set for Ender 3/3 V2/Ender 3 Neo/Ender 3 S1 Pro/Ender 5 Plus/CR 10 Series 3D Printer (4Pcs)

I really like the look of the bright red aluminum adjustment wheels. It matches the red fittings on my Ender 5. The fit and finish of the materials in this kit are great quality, and everything fit as expected. On of my biggest frustrations with the ender 5 is adjustability of the leveling table. I used the bushings and adjustment wheels from this kit, and opted not to use the new springs. I found the table much easier to level with much less adjustment. That was a really great surprise, and makes this kit worth the upgrade. The bushings are supposed to provide a more secure adjustment, so hopefully less correction will be required down the road. Nothing is more frustrating than to discover a print was ruined, because the table fell out of level, and you print overnight. So far I am impressed with this kit.

Love these wheels versus the plastic ones that come on my Ender 3. I do love that the silicon spacers are two different sizes to overcome the bed heater holder/protector. Look great and work great.

I installed the metal leveling knobs and springs on an Ender 3 Pro. I like that the original knobs had the up/down arrows on them, but its not hard to remember which way to turn them. The metal knobs are roughly the same size, but look and feel better. The threaded area of the metal knobs needs to be a little taller, as it is the knobs are very close to the carriage and sometimes rub it when youre adjusting the bed. Its not a big issue and you could add a washer to space it out a little more, but itd be nice if they added a little length there. I like swapping to the upgraded springs and have used these on any printer with the cheaper silver ones. With the upgraded ones I get more consistent bed leveling that seems to hold longer. Theyre a simple, cheap upgrade that improves print quality some and makes maintenance and tuning easier. I havent used the silicone spacers yet, but Im planning to use them on a CR-10 Mini that Im adding ABL to. My hope is that the silcone spacers will give more stability than the springs, but still allow for some manual adjustment, if needed. I think this is a good upgrade set and I like that you have options for the bed spring upgrade. Especially since you can use them to upgrade the springs on two machines, like Im planning to do. If they extended the threaded area of the knobs then it would be a 5 star set.

Not sure why nozzles are included in this set, but hey, what a bonus! I always prefer the red aluminum leveling nuts over the black plastic versions. They wont improve print quality or have any significant impact on your prints but they look great. They are also easier to adjust. The tighter springs will help keep your bed level for longer periods and will make adjustments easier. This will have a positive impact on the quality of your prints because everyone knows the secret to a good print is a good first layer, and a level bed is necessary for a good first layer! The silicone mounts are meant to replace the springs when your printer has an auto leveler such as a BL/CR Touch or an EZ-ABL (or equivalent). You will install these, tram your bed and then let the auto leveler do its thing.

This is a good kit with the MK8 nozzles and silicone spacers that most bed slingers can benefit from. The red wheels are just a bonus and in my opinion dont improve anything but looks. But this kit is the same price as a pack of the silicone spacers I got a couple of years ago for my first printer so great value overall.

Exactly what every Ender 3 needs out of the box.