I bought this kit mostly for the springs.I ended up making some sleeves that go inside the springs because they still didnt want to stay vertical even with the flat ends. They are firmer thought and work nicely. The extruder top was just a bonus, and its really nice. Only drawback there is it should have instructions or at least a diagram. I ended up going back to the stock adjuster wheels. The aluminum ones are made well, but they are too slick imo. The stock ones have better knurling and are lighter weight.

I like the metal upgrade, springs are great, and the twist nuts are cool but the extruder set was missing a bolt. I was able to reuse old bolts that I had, but be aware, you will be one short.

Only received 3/4 springs and the extruder hardware in the bags does not match what was advertised, I think with the plastic extruder hardware I have can make it work. Two stars for the quality of the parts that did arrive being decent. Caveat emptor, you are also on your own to figure it all out, no instructions included.

The filament guide on the metal extruder (not the gear) broke after a month of use. Got a really bad squeak, investigated and found that the bolt stripped mid print. Will stay away from this product.

Picked this package up right after getting an Ender 3 Pro. The all metal extruder feeder is a must to replace the plastic one that quickly wears out and causes problems. For the seriously good price I went ahead and grabbed this kit for the metal knobs and upgraded springs. The knobs are a nice to have and feel better when leveling, but the springs make the surface feel much more stable and give more control when leveling. This is a great value for a few upgrades that should have come out of the box with the Creality Ender 3.

Great product! Easy install and great quality.

The springs and wheels are better than stock, not sure on the rest as my machine came with aluminum

Dropped one star for the fact that the springs are too long for the bed of my Ender 3 V2, the kit however is still fantastic value. The red wheels and the metal extruded are both big upgrades over the standard plastic ones and both are simple to install. Recommended!

the two red adjustable height wheels were missing.

I have this kit installed on two of my printers. Extruder pieces were well made and came with an easy to follow diagram. Bed leveling springs are strong and keep good tension on the nice aluminum leveling knobs... would definitely buy again.